I am not a beta tester myself, but I have also watched a few videos in Youtube from beta testers, and the impression I get is that there are improvements, but not so significant, at least that is what I understood from the reviews I watched. So, to be honest I do not want to get too excited about the game.
One of the reviews I watched talked about a whole new improved goalkeeper experience and how we can now play as a goalkeeper in Rush mode. Dribbling also seems to be much better and a few other things. Like I said, I do not want to get my hopes up, as I am not expecting a major upgrade from the last one.