Sounds very interesting!

and i'm very curious:
- Are you going to use SH5 graphical engine? (or can we expect at least same eye candy?)
- Submarine/boats management a la SH5? (ability to mouve everywhere?)
- Planes playable??

(can we expect good flight model/cockpit modelisation, or just very basics ones?)
- Joystic required? (guess so..)
Anyway, good luck with this awesome project!