I doubt I'll say anything that hasn't already been stated in the 15 pages prior.
1) Not to have to start over again
2) Not to have to worry about a shutdown of the game
3) Keep the 1000 toon slots per server
Anything else is gravy. I'd love new costume options, asymmetric costuming, TF reworks, new TFs, more powerset proliferation, more new powers. Those would just be sugar on top for me though.