I also heard somewhere in the various videos lately a developer use the phrase "End Game". They also used the word "raids" in the context of this endgame.
Some people have negative feelings regarding raiding - put putting that aside for a moment - this is the first time I've heard them talk about anything other than "story" and "character".
I think that's why it seems so "linear" at the moment - because of their marketting focus on the classes and the story but there will hopefully ultimately be those other things that we expect from an MMO. Social "hubs", End Game...has anyone considered how they might impliment more customization through a limited crafting system?
I suppose it's all still early days.
I'm intrigued to see the characters that we don't know about yet. I'll have a quick guess:
Jedi Tailer (can only make robes)
Politican (with "Bore Enemy" ability)
Sith Wannabe (just like the normal sith but with really bad stats and only one ability "Star Wars Kid")
Small sort of gerbil-like alien dude. Runs fast and poops in corners (these corners are indicated by green glowy outlines of the gerbil-like alien dude).

) it makes me think that if/when we get together and do some stuff it will be a right laugh, as long as it's not the same content over, and over, and over, and over again.