Wait for More Info
Details are trickling out, but we still don't know everything.
2K has outlined a lot of the changes coming to the game for current-generation platforms (and we assume next-gen platforms as well). The changes include:
2K has also released the first gameplay footage of the game for current-generation platforms. You can watch it in action in the video below.
That said, we haven't seen the game for next-gen consoles and we don't know everything about the various game modes.
For some of you it might be a good idea to hang around until we get the big picture.