I want Cole to look like Cole first and foremost. The promotional artwork is actually quite good, but it's just not the Cole MacGrath that I came to know and love.
At least he still has the satchel, I guess.
Actual parkour would be nice; something more akin to Assassin's Creed. In the first inFamous we just had freeform 'vertical exploration', which was a lot of fun, yeah, but the ability to sprint through a street, slide across the hood of a car, leap over a newsbox, slide beneath a handrail and then scramble up the side of a building and keep going would be just badass.
Maybe some more random events in the city, such as when people were hanging someone from a street-light and you had to free the victim. That came up maybe three times in my first playthrough. Random events = replay value.
In addition to that; more side-mission types and repeatable side-missions.
Also; can we 'borrow' Mass Effect 2's biotic charge and give it a lightning revamp? Pretty please?