The decisions you make in Social Links should affect the dialog or in some other way change how certain other scenes play out. Even story related scenes.
As well as having all party member characters capable of more than 1 persona like in 1 and 2.  
It would also be pretty cool if all the other characters had their own Social Links that they develop which also changes how they interact throughout the course of the game. 
 
What are some of your thoughts about things you want, as well as thoughts on my own ideas?

I would like to see Chie

I gotta say, all I really want from Persona 5 is a Giant Bomb Endurance Run.

     I had another idea. Multiple choices for a Main Character. The ones you didn't choose show up as party members and have their own Social Links. The story would have a different viewpoint depending one which one you chose. As well as changing the way the Social Links play out with other characters. The overall story would then be pieced together after playing through all the character's version of the story instead of several New-Game+ runs.

I'd like all the social links to have full voice acting

Mysterious Fox vs Funky Student..battle of the century.. 
 
Seriously? 
More of everything. More weirdness, more voice acting, more awesome soundtrack and a much longer story. 
It was heartbreaking after finishing the game, 50 hours with the true ending. It needed to keep going. 
Also appearances, or nods, to the previous games, like Chihiro appearing in P4, as well as Two random guys sitting on a sofa screaming at each other about Bufu.

" I'd like all the social links to have full voice acting "

I would really enjoy it if Shoji Meguro stayed on team.

Either allow you to customise your character, or stick with a default template but also give him/her a damn voice. =/

"I'd like all the social links to have full voice acting "

"I would really enjoy it if Shoji Meguro stayed on team. "

"Either allow you to customise your character, or stick with a default template but also give him/her a damn voice. =/ "

Persona 3 had a dog with a knife in its mouth. 
 
Persona 4 had a Teddy that got people bent with his fists. 
 
Persona 5, it is time: 

HD College Girl Sprites. HDCGS.
 
Only possible on the PSP!

" @Abyssfull said:

"Either allow you to customise your character, or stick with a default template but also give him/her a damn voice. =/ "

ehhhh I say no. I think the silent protagonist works really well for these games. I like being able to project your own character onto him/her. It would be really jarring if he/she had a voice. "

When you have the chance to nail your teacher, you should be able to take it.

"When you have the chance to nail your teacher, you should be able to take it. "