would be interesting to see missions randomly generated during freeflight and would certainly add to the feel of the game where upon receiving certain contracts (such as Police and SAR) that those tasks then appear, this would make managing fuel much more vital as it would play directly into the game and would allow for a wider range of methods for earning currency after the campaign has finished.
certainly though; fire, transport, medivac and police missions in lieu of "Sim Copter" would add to the dynamic of the game.