This game is freaking awesomeness to the fullest ! I've already pre-ordered it and got 3 months of gameplay just like HybridPanda(although he got 6 months
)
I think it will actually attract numerous people from WoW.Of course the only thing that can beat wow is when the developers decide to quit it,since WoW has millions subscribers monthly,but I think Rift has high chances of becoming good ^^
The only thing I am afraid of is that due to the many MANY classes and speccs u can create it will be difficult to balance PvP-Wise.But if the developers dont slack like WoW(which does the same strategy for years(and the reason I quitted 1 week ago) to put classes from nerf to op then nerf them medium them nerf then again OP somebody else etc same story same shit) or NSoft (which didnt even care for Aion PvP) I think the game will be a success
Although I enjoy its PvE aspect too,I think I'll go for the PvP one and create a shadow ranger with stealth and assasin-like with a longbow