Some good suggestions so far, with many types that I would love to see flying (again) some day.
I've often wondered why, with the dozens of F-84's preserved or stored around the world, no one seems to be trying to return one to flying condition. Marginal power and lots of magnesium/corrosion problems, I've been told.
For some really out-of-the-box hopes: when Romania retired its H-5's (Chinese Il-28 copies) about 10 years ago, I was sure some US enthusiast would buy the survivors and put one on the display circuit. Likewise when the PLAAF retired its J6's (MiG-19 copies) and Q5's. So... who is going to surprise us?
(To be slightly more realistic, I'm just hoping I will get the chance to see the Collings F-105, one of the El Paso, TX F-106's, or the Stennis, MS Lightning fly during my lifetime.)
Roger