Just a fast question;

Is Serana essential even after all the Dawnguard quests are finished? I enjoyed her company a lot, she is a good follower to have, but even tho she is really adoralbe ally, I really wouldn't like to abuse her essential thingie. So is she able to die if I take her as my follower now when everything is finished? Can I expect her to get eaten by a dragon or so? I hope so, because I don't want her to ruin my gameplay even if she is.

She's one of those 'always essential' NPC's. Or at least in my game its that way.

Ah fair enough then, thanks for the answer.