So there are two separate issues here that we shouldn't conflate.
The first issue is whether the narrative structure of the trailer (and the themes of the expansion) imitate WoW and Starcraft. In particular, I understand that you propose that CCP imitates Blizzard in that a threatening menace has returned to destroy the world, and that the heroes (players) must stand against the menace when everyone else flees. If I've misunderstood, I apologize and really would like you to correct my restatement.
The second issue is whether the gameplay of defeating incursions resembles a WoW raid (or, more properly, dungeon fight / boss fight). The PvE mechanics require cooperation, including healing/logistics, DPS, and tactics to make the boss/mothership vulnerable for short periods of time. If you see other similarities, I'd be interested in hearing about those, too.
Assuming I understand these two issues properly, then it seems that you conclude that CCP wants to imitate Blizzard so as to make the game more WoW-like overall? Do I have that right?
I'm not trying to put words in your mouth at all, just to make sure I'm following your line of reasoning.