What STO is seriously lacking at this point (amongst other things) is character customization after creation. Since I really only play during my days off, and its taken me a while just to reach the rank of Commander, I'd like to see a token in the C-Store to change your characters race without the need to start a new character.
It would also be nice to be able to change their class (tactical, engineering, science). It wouldn't be a bad thing if they added a new class or two, also. Variety is the spice of life, as the saying goes. Tactical and security are not necessarily the same thing, for instance. Someone can be a security officer, but have nothing to do with firing starship weapons. You could even differentiate between science and medic if you wanted to. Yes, both involve science, but taking a "science officer" on an away team is not necessarily the same as taking the CMO (chief medical officer). They could even add "marines" (with a green color to their uniforms by default) and make them different than the other classes. Only having three classes does feel limiting, especially given that Cryptic is known for its customization skills.