Seeing how there are new Champions coming out quite frequently, I thought it would be a better idea to have one thread for all.
 

And with this I will start with the new Champion on the horizon. Caitlyn, the Sheriff of Piltover.
 

Caitlyn, the Sheriff of Piltover

Renekton, the Butcher of the Sands

Karma, the Enlightened One

Maokai, the Twisted Treant

Jarvan IV, the Exemplar of Demacia

Nocturne, the Eternal Nightmare

Lee Sin, the Blind Monk

Didn't they just bring out Cassiopeia? Good lord!
 
Really like Caitlyn's design though, apart from her face which seems kinda... stern?

" She should fight MF in a 1v1 classic Good vs. Evil showdown at sunset. "

" Didn't they just bring out Cassiopeia? Good lord!  Really like Caitlyn's design though, apart from her face which seems kinda... stern? "

Caitlyn is out, and she looks amazing. Updating OP. Oh, and I don't know how much she costs yet...

She looks interesting. Certainly seems really powerful early on so it'll be interesting to see how she scales late game (my guess is not great since they specifically mention that she's designed to end the game early in the Spotlight). 
 
She seems a little tricky to play too. Very reliant on trap placement and using her net. 

Played a few games with and against Caitlyn. She looks pretty amazing to be honest, but the 6300 IP is too much for me though, and the fact that I don't really like her voice doesn't help either. I guess I'll finally be able to save up for Swain now....

While Caitlyn is certainly interesting despite her flaws, new Champion is in the works. Renekton, the Eater of Souls appears to be brother of Nasus. It will certainly be interesting to see this crocodile-Ancient-Egpyt-inspired creature.
 
Updated OP.

Renekton's skills have been revealed. He will use a new mechanic called "Fury", which basically works the same way as "Rage" in World of Warcraft. His Ultimate is similar to that of Nasus. Also, his name has been changed. He is the Butcher of the Sands now.
 
Edit: Champion Spotlight is out.

Might try to buy him, since I'm already a big fan of Nasus

He seems really interesting, and I want to buy him. But I don't have the IP right now...

God Caitlyns endgame potential is just depressing though...

" God Caitlyns endgame potential is just depressing though... "

A new tank is apperently incoming, I spotted this in Guinsoo's twitter 
" Trying a future tank champion in design playtest. We'll see if he's good in TT! I think his damage output will be too low - lots of CC tho.   " 
Could this be the female tank we have been asking for ?

Every Caitlyn that I've played against is thoroughly depressing to watch.  Such a pointless character.  Cassiopeia is much the same way to me, as she seems pretty much like Urgot except worse with her poisons.  My Malzahar raped that bitch last night six times in a row.  Mind you, the player could've been bad...but they agitated well at the beginning of the match.  However, my nuke setup is just far more powerful. 
 
As for Renekton, I've seen one or two people play him so far.  He's pretty beasty, but there just aren't a lot of GOOD guides out there to help get him to his maximum potential.  I give it another week or two and I'm sure we'll see some insane Renekton players coming out of the woodworks.

" Every Caitlyn that I've played against is thoroughly depressing to watch.  Such a pointless character.  Cassiopeia is much the same way to me, as she seems pretty much like Urgot except worse with her poisons.  My Malzahar raped that bitch last night six times in a row.  Mind you, the player could've been bad...but they agitated well at the beginning of the match.  However, my nuke setup is just far more powerful.  As for Renekton, I've seen one or two people play him so far.  He's pretty beasty, but there just aren't a lot of GOOD guides out there to help get him to his maximum potential.  I give it another week or two and I'm sure we'll see some insane Renekton players coming out of the woodworks. "

I haven't seen a great Caitlyn yet. I played with a fairly decent renekton just recently. 
 
@jakob187 said:

" Every Caitlyn that I've played against is thoroughly depressing to watch.  Such a pointless character.  Cassiopeia is much the same way to me, as she seems pretty much like Urgot except worse with her poisons.  My Malzahar raped that bitch last night six times in a row.  Mind you, the player could've been bad...but they agitated well at the beginning of the match.

Art Spotlight for Renekton is out. No idea why there isn't one for Caitlyn, though.

New Ionian Champion is coming. Hopefully she will NOT be 6300.

I hope she won't be either...
There is a good chance of that though cause i remember someone from riot commenting on that there would be some cheaper champs ip wise to balance it out.
 
Although i expect that 6300 will become the norm. It's just in their best interest.
I used to be able to just buy most champs with ip when they came out, now you simply can't if you don't play alot.

I feel like they are releasing every 2 weeks.
 
Well mabye it isen't an 6300 champ everytime.

I really hope it isn't a 6300 champ. Cause the past couple ones that have been released, I haven't really liked a lot.

" @tiwi:  http://leagueoflegends.wikia.com/wiki/Champion  Looks like two weeks to me.  Edit: Karma Art Spotlight is out.  Edit Edit: A New Champion Approaches is out for Karma. Interesting thing to note, she will have her ult from the very beginning and does not require a skill point. "

Bought Karma, tried her out, not too bad. Her mantra + q heal is my only complaint. Its really only good to save people from almost dying and i would probably just use the shield if it was off cooldown. I prefer to play her more support like then just pure AP. Or whatever the team comp is.

Played against a Karma last night.  She went 0/10 in the match, but I'm not expecting anything great from her as far as KDR is concerned.  The support she offered, however, was very interesting to watch.  At higher levels, she's great to keep supers off the Nexus, and her tether is a POWERFUL escape/chase mechanic.  Unfortunately, it's going to take a few weeks before we see REALLY good Karmas.  I can see her being a strong viable character in 3s. 
 
Regardless of all that, it's nice to see a champ for 3150.  = D
 
In other news, Renekton is free to play this week.  We've been seeing a lot of him online, especially after they buffed Cull of the Meek for early game.  He's a much sicker champ now than he was before, and with his ult blown, he's about as goddamn annoying as a 4.2k Vlad.  Nonetheless, Deathfire Grasp still teaches him not to fuck with ya. 
 
Last but not least, DJINN MALZAHAR!!!  HUZZAH!!!  He looks so fucking pimp.  Now I just want a legendary.

Played a few times against Karma yesterday. Doesn't interest me as much.
 
So, according to the scans and the timeframe, the Tree Champion is next? 

Gallery

Here's some details on both of the new champions:  Maokai and Jarvan.  These two champions sound absolutely fucking sick!  Jarvan sounds like the first melee I might check out, just because I really like how hard of an initiator he is.

Man oh man, guys.  MAOKAI IS A BEAST!!!  I don't care for tanky characters, but he's so damn fun to play.  I'm sure that they'll hit his Saplings with the nerf bat in the next patch, but beyond that, I haven't seen a loss happen with a Maokai on a team yet.

" Man oh man, guys.  MAOKAI IS A BEAST!!!  I don't care for tanky characters, but he's so damn fun to play.  I'm sure that they'll hit his Saplings with the nerf bat in the next patch, but beyond that, I haven't seen a loss happen with a Maokai on a team yet. "

Yeah, he isn't good enough at tanking to be main tank, but he is pretty neat. I purchased the double bundle because i had 3,6 K RP just itching to be spent. 
Now i just need to figure out a good flexible build for him.

So... Jarvan. Thoughts?

I wonder if his standard will face some of the same issues that rally does, and how big the cc effect from standard + q will be.

Man his ulti seems like it might be OP.
  

It seems to be along the lines of Rattletraps(DoTA) W.
 
If it is then yes, it's pretty brutal.

I had my doubts about the ult concept, but it seems very nice. I will probably get the 1,2k bundle when is released.

He seems like he had a fairly high skill cap, which means when played well, he will probably seem a tad OP. The rewards of mastering a high skill cap champ.

Wow he seems interesting, definitely not getting him anytime soon.