since 3D is all the rave, get some planes out there, electric ,like e flight did 2200 3S batteries, they can be made cheap for all and loads of fun.
Some 55 inch, 70 inch and 50cc 88-92 inch gasoline.
THIS IS WHERE THE MARKET IS NOW.

Of course scale/ish kit versions will always be a passion to meet also
SIG coming back would be great, as long as good product( support) and new ideas are there, SIG has a place for sure.