It seems that Global Agenda Online is trying to do this. A mixture of TF2, ET:QW and MMORPGS in an persistant online world. Whether or not it can be titled as a MMO is another question. But as long as the game itself is fun and has a good game design I do not care. Fact is, most recent MMORPGs were good at following the typical formula: throw in classes, lots of items to farm fort, bosses, a world, PvP here and there, add in some instances - ding, ding - and we have a new game - without providing a solid and fresh game design.

Being a long time FPS player I am really looking into the upcoming FPS games. Because auto-targeting, watching cooldowns of spells or watching cast-times (Zzzz) isn't my thing at all. The pace of Guild Wars, though, was actually not bad. But still the combat feels more like chess due to the controls of the game.