Well... afaik there has been one developer who gave it a try, Lionheart Creations, and the last thing I read about that is that he gave up on it (last summer). Not too encouraging. Maybe there have been more developers who looked at porting their planes to AFS2 but I haven't heard of them.
Dino Cattaneo shows up from time to time trying to figure out how to move forward with bringing some of his excellent designs to AFS2.
Regards,
Ray