I was actually surprised that Cataclysm featured a low level facelift. Sure, level 1-60 take up a good chunk of the game, but to invest that much time to updating it tells me that they're going to keep World of Warcraft running in case Titan falls through.
I'm anxious to see what Titan will be. They say it'll be different from World of Warcraft so as to not steal subscribers, but I can't imagine what that would be. Blizzard has only ever produced role-playing and real-time strategy games. Maybe Titan will be an isometric game. Like an MMO Diablo or something.
Anyway, I'm just waiting for Star Wars: The Old Republic to be released so I can figure out if I love or hate it. Here's hoping it's a free roam game like the old Galaxies was. If it's more like Guild Wars, I'll stab someone.