There are three things that MMO's must have in order to succeed and those three things are a Community, Economy and Playing style. Rift didn't have all three and the only difference between rifts dynamic events and wow's super rare's(rare elites before they took the elites status out) is in rift, they mark it on the map and call out in chat for everyone to come and in WoW they leave the gathering up to the people. TOR does have a Community already, they do have an economy ( I know as I did craft stuff and sell it on the AH) and the playing style is the same as any MMO that I've ever played. Let's not forget another fact, all RPG's copy their play style and combat style and yes even the trinity from DnD. So yes!!! TOR will survive and yes, TOR will be a great game.