I don't think guns would be a problem with good gameplay mechanics. Anyone play Hitman? That game had tons of different guns, but no one ever used them. Using guns would cause all of the guards to become alerted (because noise was a factor) and once guards started shooting at you, you would die very quickly. Just make noise a factor and make it so that enemy guns are realistically deadly, and it's easy to set up situations that don't feel contrived where you don't want to use guns, while still having the option. I don't want to see it be like Mirror's Edge though, guns ruined that game.
 
I think modern city layout is the biggest concern. True, smaller European cities and certain sections of bigger, old ones do have a good layout, but not the majority. The villa outisde of the animus in Brotherhood was amazingly well done though, so I think Ubisoft could do it.

" @iKANNIBAL said:

"I'm shocked they havn't made one of Desmond's Ancestors a Spartan yet D: infact you know that maybe a little plausible IF Assassin's Creed 3 will  have Desmond back in the Animus that is which i don't think it will, it would make sense considering Greeks discovering Italy/The Etruscans, and then there is the whole Greeks conquering the Southern part of Italy.  You know they could do that, and instead of having Da Vinci as a homie, we could kick it with Alexander the great or Spartacus, FTW! I also wouldn't mind Japan or China, but that would probably have to be done in Assassin's Creed 4 when Desmond's story is over as Japan & China didn't have anything to do with the Mediterranean. Desmond having a Japanese ancestor would be a WTF?! lol. "

Wait, how would Desmond visting his greek ancestors have him hanging out with Spartacus??? Spartacus was a Gladiator. Not a Spartan. Are you thinking about Leonadius (Spelling is wrong I know)?  Anyway I would love for them to have done it in Roman Era and have your character start off as a Gladiator while the Emperor is a Templar. But, I can't see them doing that. If they do go back to the animus I have a feeling it might be like American Revolution time period. "

Assassins Creed can be in the modern day, but not in a monder city with skyscrapers. I have not played brotherhood yet but from what I gather desmond is in the villa for awhile so their is nothing to really stop him from heading to cities whose architecture is not a massive hurdle. It might have to come with the cost of not getting to big named cities but I think it could work for hte better

" @TheMaxMeister said:

" @President_Barackbar said:

" @TheMaxMeister said:

" I could definitely see myself enjoying a modern time Assassin's Creed. There are many ways to restrict gun usage in a setting where guns are widely available. "

But then it would just be Splinter Cell with an emphasis on killing. "

No it would not; it would be like Assassin's Creed 2, in a modern setting. The two series don't have all that much in common if you actually think about it. In Assassin's Creed, there's no hiding in the shadows, no cover, no shooting (no manual aiming). The game is open world, all about blending in, and more recently, has an economy system.  I don't see any basis for your comment. "

I love how you basically ignored that Splinter Cell: Conviction played a lot more like AC. You basically decided to shit on my comment without really being constructive at all. Bravo. "

All I know is that if they don't update the gameplay and/or engine in any meaningful way I'm not even sure if I'll buy it. I ended up trudging through AC:B just because I wanted to know what happened next in the story.

I think a travelling samurai or ninja somin' would work quite well.