It would depend on how they handled combat and the current jobs. Most likely though, probably would stop playing eventually because I doubt theyd make up the lack of more content with a very good overhaul of the current jobs system. It doesnt have very much depth and if it did, it would probably take them 2 or 3 expansions worth of time to implement the changes that would make up for the lack of new jobs to begin with. They could surprise me, but I just don't see it. The least they can do is push a new job till they decide to tear it to pieces and give all its identity to the rest of the role 2 expansions later.