Out of all of these titles, I think Diablo is the only franchise with a strong enough name to compete with WoW. I'm not big on MMOs, but I'm well aware of how popular WoW is. Diablo II is the only other MMO that I've seen captivate a hardcore fan base that's comparable to WoW's. The amount of Diablo LAN parties that I've witnessed are a testimony to that., especially considering that I don't even play the game.

Besides, any game that's a decade old that's still consistently being played has some obvious potential as a franchise.

The old republic for sure!

After chatting with the KOTOR developers at PAX, I'd have to say that I think it has the most potential. KOTOR already has a large RPG community fanbase, so it has a good built-in fanbase surrounding it.

Plus, it supposedly is trying to make story important to the MMO, which pleases me. It pleases me very much!

Diablo! Diablo! Diablo!

mmm I love me some diablo as well. But The Old Republic (as long as it is good) will crush

there is none!!! WoW owns youz.

Guild Wars 2?

I honestly think this is the wrong question to ask. WoW is an game that has captured millions of people in its gameplay, its not the type of game that is 'beaten'. People now play for the community, which just doesn't exist elsewhere now. All that could happen is if they stop producing new content for the game for people to keep playing. Which...probably isn't going to happen.

Agreed nothing will beat WOW in the sence that people will move on. It's like asking what will get WWII out of the history books.