There has been more info recently. It was said that:
1. It won't be Battlefront 3
2. It won't be SW:Battlefield either because it would be too boring (agree)
3. It will be reboot of the series with elements that are characteristic for Battlefront but mainly it will be something fresh.
4. First person perspective is more than likely.
We have to remember that they do now basically sketches of the game, nothing more, so everything can be changed (I'm looking at fpp..). Important thing is we probably get something that will eventually replace swbf2.