It's the Hero Engine so expect the lip-sync to be off, the animations to be jerky, and the epic "fights" in the game to consist of enemies twirling their arms around like a madman while their hands glitch into the weapons they are suppose to be holding.
Just so it isn't lost on everyone, if you are referring to SWTOR, BioWare licensed the Hero Engine early on in its development when many of its features were undeveloped. They wrote support for those features themselves. http://www.youtube.com/watch?v=lnXqOFACsA0&feature=player_embedded. Based on the discrepency between what Hero Engine showcases and what BioWare delivered, It is safe to say that BioWare integrated their own animation system.
Not everyone realizes that the version of Hero Engine that BioWare uses is not synced with the current source build. They bought the license to the code under the understanding that they would be forefiting support from the owners.
Another thing. SWTOR lacks day night cycles and people think that it's because of the engine. It was a design choice... http://www.youtube.com/watch?v=34MkAlBZp7c&feature=player_embedded. BioWare chose not to use this for "artistic reasons."
Here's hoping that ZOS opted to keep syncronized with the current build of the engine so that the end result is fully featured.
As to the comic look, there are technical and long-term aesthetic reasons for going with stylized art as opposed to photorealistic art. The latter does not hold up well over time, while the former does. It's different with stand-alone game releases like the TES core series. Each is a different game and so they get to evolve with the technology. But an MMO cannot redesign its graphics and graphics system every time there is a new generation of graphics cards on the market. Also, designing the art stylistically allows them to produce visuals that can be rendered beautifully on even lower-end machines. This opens the door for a lot more players.
I'm not concerned with TESO's graphics. http://www.gamesas.com/topic/1371819-how-will-zos-treat-the-community-after-teso-launches/, in terms of forward-going content development.