I'm not particularly sold on the need for a Battlefront III. I'm not normally one who would whine and complain if a sequel maintains the status quo in regards to a predecessor, but given how the Star Wars universe is and how Battlefront I and II already handled it, and II wasn't all that different gameplay or setting wise from I, I can't really get up for a BFIII when I could just as easily play go back and play the first one.
By all means, give me Hoth. (And, for the record, give me the Hoth map from the first game and not the second.) But make the gunplay better. Have it play faster like Republic Commando. In Battlefront, it's almost like you can sidestep a blaster shot at point-blank range. Also, let's move a little faster, maybe a sprint function.
It's Star Wars, I get it. Nobody ever gets hit by a blaster in the movies and you're going to play on Tatooine, Hoth, etc. But if that's going to continue to be the case with BFIII, I can stick with I and II.