I prefer Gorilla Grodd if they add a big boy than make him smart with some new fresh tricks
like someone who uses technology and mind control like grodd not another dumbo.
I still believe that Gorilla Grodd would be an amazing addition, because he could have a lot of unique stuff:
1) power AND gadget character, since he is strong and agile, so he could either throw interactives, or bounce of them off,
2) use telekinesis to pick up stage interactive objects and attack the opponents,
3) use telekinesis to attack the opponents,
4) use telepathy to mind-control them and make them hurt themselves,
5) + he could be a major part of the story, because of his powers.
And yeah, he doesn't use telekinesis that much, but he has it to some degree.