To bounce off Alex72s post above. It would be great.
Allowing the passengers/pilots to "feel" the airframe being vibrated. Perhaps up to a certain speed, the settings could be the same as it is now. (Maybe have the 'head bob' effect?) However once over a certain speed and turn ratio/banking/G-force the passengers will feel the G-force of the aircraft. (slight blur of the screen)
Keep up the great work ACE team.