The answer is no, ArenaNet will continue to add bits of content and services until than, and the live updates are continuing to grow. The last one was three times the size of the original, and the one coming this Summer should be twice the size of what we have now. The game is only getting better.

ArenaNet forgot to adress some issues for the PvP players, but everything is being fixed. I know you guys want UAR & UAS, ArenaNet won't give it, but rest assured, I'm positive they have something even better in store.
If your having some ill feelings towards the game at the current time, leave and come back when you feel it's better. You won't have to pay, right?

--Ginko