Sucker Punch is one of Sony's very best studios, responsible for both the Sly Cooper franchise, and the inFamous franchise.
inFamous: Second Son launched in 2014 for PS4 and was a great game, quite underrated actually. That was three years ago and it's quite likely we'll see what the studio has been hard at work on. At E3 2015, Shuhei Yoshida said he had played a working build of Sucker Punch's next game and the team was rumoured to be working on Spider-Man last year, although that turned out to be untrue.
The team are almost certainly working on a new game though, nothing related to inFamous, but we know absolutely nothing more right now. I think there is a strong chance we see what the new game is and it could very well steal the show!