There's some really good-looking city environments, for example, and a world savaged by an asteroid, of which you're a "special" survivor. There are dune buggies to race around, and a little bit of open world to explore. And yes, the freaks are still there, but there's also a group called The Authority trying to put the shackles on the world, and a Resistance trying to keep them off.
There's lots and lots of guns, too. We still don't see, however, just where Blake Griffin fits into the picture.