I guess, not being an expert, the key things to drive this game on now then would be:
1 - marketing
2 - creating lively forums which many want to be a part of
3 - mentor system or something to ensure the many users that log in once but never again do actually return
4 - making the payment system simpler ($× per month or 3 months etc) offering plenty of extra features (not ones which give advantages to the subscribers but that make life playing it quicker or slicker or more enjoyable) - you know the stuff other mmorpg games already do I guess
Would love to help try to drive such a project forward but would have no idea about where to start as this isn't my career! !
Keep it up jdb