I don't know, the gameplay just doesn't look... right. It doesn't feel right for something that is Star Wars. It feels too much WoW in space, to put it crudely.
I would almost say the exact opposite. TBH, this looks like Knights of the Old Republic III: The MMO Edition, which is what it should be. I don't see much WoW influence (This coming from a guy that put two alliance characters to the highest pvp rank in vanilla WoW, as well as raids, then went on to Horde his way through each expansion and eventually spent countless hours bathing in blood through the arena's). I will say that I have not played Cataclysm and I don't plan to, and if anything from that expansion gives you reminders when watching this trailer, well, I have no arguement.