I for one am stoked. The game is going to live forever! It will finally become a solo player paradise, with grouping only providing an acceleration of completion, not a requirement to do so!. I think ending the story is the right idea, the game is over for all intents and purposes saying otherwise is just being silly. All that is left are the hangers on, and the few who come and go from time to time.
I can't wait personally, especially for the mobile version, kick *** news!