Through all the smoke and mirrors its looks like a very shallow plan for this expansion. No class stories, no faction specific stories. Everyone is the "same". Having rivaling factions is ingrained into Star Wars. It is part of the foundation. All this "cooperation" lately just keeps detaching itself from Star Wars in my opinion.
Lets face reality, this game had two things going for it; it had Star Wars and it had great storytelling through 8 different class stories. Its moving away from some Star Wars foundation and its trimmed down the story telling into one all encompassing vanilla story. They encouraged and even sometimes outright shamed people that complained about the lack of depth at launch to make alts and play through the class stories. Now they have completely abandoned them.
Im just not buying the hype. I think its all cost cutting and this will be a meager expansion just like all the others so far.