I would love to see EF2k (Eurofighter 2000) on GOG. It was one of the best flight sims of its time. There was even a later version called EF2K Typhoon, or something like that, that had better graphics, but skipped a lot of the real immersive stuff on missions, like taxi/takeoff and landings.

http://www.gog.com/wishlist

It's on the very first page you come to when you click community, not sure how you missed it.

This.

However note that it is only a Wishlist it is not a guarantee list. GOG will, of course, pay attention to the wishlist, but they do not have infinite resources and can only focus on so many projects at once. As a result whilst they will put priorities toward high profile items on the list, just because something is top ranked won't mean that it will appear on GoG for certain.