Massively^™

As seen here and here, the combat in Age of Conan is something we've not seen in an MMO before, and it's to Funcom's credit that they're trying to bring combat closer to something approximating the choices an actual fighter might have to make during a battle. If this approach proves successful (and it's likely to please at least a portion of its audience), it's possible we could see other MMOs take up the challenge of refining an active-combat methodology themselves.

I'd like to see a combat system with some depth applied to the martial arts MMO genre, where a warrior's style actually does matter -- a lower, more grounded stance versus a higher, more mobile one; the option of attacking different locations on an opponent's body; a succession of keypresses to activate special chi-based abilities; a workable, skill-based blocking set of actions. Much better than simply firing off a macro, such a system would truly test a player's mettle, leading to a deeper appreciation of the complexities of real-time combat. Here's looking to the future: may it bring us innovation!