1. Provide the possibility to look around the realistic fat cockpit frames so as not to make the gameplay unrealistically difficult.
This is one of my pet peeves in Il2, but early screenshots from BoB look promising since the frames look thinner.
2. Ability to field large bomber formations.
This has already been confirmed. BoB will use a much more CPU-efficient system for AI aircraft.
3. Heaps of AIs if wanted in sweeps, FFAs, intercepts, interdictions and bombing missions.
See above. I'm very happy that we will finally have realistic sized air battles (squadron on squadron = 40+ aircraft).