For now we have plenty of different aircraft types of any sizes, and each 3-rd or 4-th update new planes become members of entire game fleet.
But if new models are pretty accurate, some of the oldest, that were part of the game from app launch, are a bit outdated. (Especially A380 and A340 aircraft)
How do you think, in future, can we expect some of old models redesign (just to make them a bit more accurate, not detailed) or, for long time, priority will be more on new models creation side?