Board Thread:Other TES Titles/@comment-26314954-20150527233248/@comment-62.194.151.138-20150612180858

http://www.reddit.com/r/teslore/comments/1z6f4g/possibly_a_dumb_question_pertaining_to_eso/

Here you can see the answer, The vestige is basically a deadra bound to  Mundus  by absorbing skyshards. Its said here the Vestage is quasi-immortal. I dont know what he means by this. Maybe the vestage can actually age and die of old age, but that is not explained here. If that is the case, becoming a vampire would mean you truely would never be able to die. However since the vestige basically is a deadra, even after getting the soul back I'd assume them not to be able to age, like any other deadra.

Even if you get your soul back, the body you originally had is forver gone. You will always keep a vestige body, making you not able to truely die and regenerate when you do.

The vestige is really a special case. The body is pretty much the same as any deadra, only they are able to keep their souls. This is likely because of the power Meridia has making the vestige an odd case that never happened before as no deadra even has a soul, so it hard to explain what would happen if the vestige would "die" as the body they have cannot die.

Would the soul remain bound to the vestige if they "die"? Would the soul be released when the vestige "dies"? I personally think its the first option, but it remains a question nontheless.

to be safe.. just become a vampire and you can truely never die :P