I believe, we should have FF feature for future game scenarios. it will help us to have better joy and benefit from being a member of a alliance.
Also, I think feature about buy out airlines either to be subsidiaries or take over would be cool too, airline could do the deal about investment, buying out shares, etc would make the game become more realistic.
Having abilities to set up a sub in other airports would also make this game to be more fun. for example, if I have an an airline at an airport A, flying to all profitable and possible airports, then my airline will becoming very bored as there is no way I can expand the business.
At the moment, we are only allowing to have routes like A-B-C-A, A=B=C. These are very limiting the expansion. I believe there must be some reason to have this limitation, but it would be more fun to have it removed. and I think it would not be difficult, in term of programming, to have it implemented.
Please accept my apologize if I have missed any previous relevant discussions