I just had a thought about what is missing from STO that makes people think its an incomplete game.
Do you think it would be a good idea to be able to visit any of the maps/systems from the missions. but the story elements were removed.
this seems to be standard practice for most MMO's where the story is overlayed onto large exploration maps.
at present there are loads of cool places (guardian time portal for example) that are only visitable while in a mission.