Only time will tell what will 'topple' WoW.
I still don't think one game is going to come along to 'defeat' WoW. Its going to be a combined picking away at WoW until al its fans leave for a number of other MMOs like Old Repiblic, DC Universe, Agency, etc. And don't forget WoW biggest competition upcoming, Diablo III.
But also, there's many other MMOs not even listed in OP, including a number of Korean MMOs. Including the MMO that has been in development almost 6 years now. Dragon Ball MMO. That is sure to take at least Asia by storm and possibly be a big hit in America too.











