Wouldn't make sense to keep a certain part of the story if the character moved on. It's not instanced like in ESO. Personally, I liked it a lot. GW2 did a bunch of stuff right, IMO. Coulda used the trinity, though.
For sure a good game! Probably one of my best purchases tbh. Since playing through it though, it's just lost it's charm for me personally. Then again, so has every other MMO I've tried, so that may not be saying much.
I'm lovin ESO, but I honestly don't think it's going to keep me hooked either. It's panning out to be like SWTOR; amazing leveling experience, but once that's done, all the *little* problems start to add up.