In my opinion, I loved Ent because there was no all powerful Fedaration to suck the life out fo the show. I thnk ST in general needs to be re-invented before they can air a new series. Maybe one where the Fedaration gets beat up in some struggle (no need for external war but civil war could be fun); or at some point in the future where things aren't so cushy.
Just what I'd like to see.