Hopefully they get rid of Joker's trait from the first game and replace with something like the joybuzzer. Still can't believe they didn't give him that in Injustice 1.
They need to add some more new moves for the characters and get rid of Batmans holding a purse stance its God Awful... And switch Superman and Supergirls special because Superman should have the more powerful Supermove.
I am plenty ok if supes plays mostly like he did in injustice 1. However I always found wonder woman to be gimped with 2 half baked stances instead of being a proper full character so I don't want to see that returning.
Also if hawkgirl comes back I want her to be able to do something else besides bf2