I don't understand how EA/DICE doesn't see the answer to this. All they have to do is look at the COD rotation. Have 2 teams, and have one team create unrealistic war games that are based on real wars or completely fabricated, and have another continue on with the more realistic immersive games they've been making as of lately. Rotate every so often. Call both Battlefield if you want, but make it clear with a subtitle that one series is fairy tale land and the other is history at it's finest, no messing around.
If EA doesn't want to do this, and expects their audience to change, or hopes do draw in a new audience, then good luck. Why not put in a little more effort so you can easily have your cake and eat it too? If your so sure your new direction of Battlefield will sell well enough to make it worth it that is.
