I know these ideas have been mentioned already so I do apologize for that, but I would love to see the idea of a engine start/shutdown system fully functioal or IF. Also with this, individual Thrust contol over individual engines. It would make for interesting situations. I now the hardest thing will be re working the physics engine to handle the different charateristics with adjusting engines. Also some planes turning circles are not that great and it would be fantastic if some of theses can be reworked for taxi and takeoff. When Aircraft need to slow down or make rapid decents, spoilers in flight mode sometimes arent enough, particulary with larger aircraft. (Very Noticable in the 777’s) Another great thing to consider adding is the angle of the spoilers in flight to adjust their overall effect. I am really interested to see peoples opinions on all these topics!