I'd imagine if you want to start getting an idea of what the next Battlefront game will look like, play Battlefield 2142 and then picture it with Star Wars skins, the Frostbite engine, and some newer game modes. Now, I'm not saying this to say that DICE will just be lazy with it. DICE isn't perfect, and I have no shortage of bad things to say about them, but they normally aren't lazy. If anything, they tend to become overly attached to their games to the point of insulting customers that complain, and from what I've read, they were passionate about doing this even before they knew they would do it. To me, that at least indicates that DICE will try their best to make this a good game.
However, this is a game that will probably be played very safe, both mechanically and in the amount of time DICE is given to work on it. Not only is EA sort of at the mercy of Disney, but they also understand that Battlefront doesn't have the same reputation as Battlefield, and both of those facts will likely convince them to not rush this particular game. They rushed Battlefield 4 because, as far as they were concerned, there was no way for it to fail and take the franchise down with it. They do not have that luxury with Battlefront at this point, and traditionally, that seems to make EA a little more cautious. The downside to this, though, is that we probably won't see a groundbreaking game, just one that looks like it could have been groundbreaking. The good news is we probably won't be getting another Battlefield 4. At worse, I'd imagine this will go the same way Battlefield 3 did as a mostly loved game if not a little disheartening to long time fans.
Of course, all of this is speculation. EA and DICE may end up surprising us for better or for worse.
