You're still dead. You died of something and that something is still there. And even if removed, you will always die of something eventually anyways. It might be something if you die very young, but most people don't.
That is assuming anyone will bother to pay for you, bother to revive you, or the technology to fix whatever killed you is invented etc etc. And of course, all signs point towards the immediate future being anything but bright.
So overall, it's seems like simply another thing for people desperately afraid of dying to cling to. Just a bunch of fantasies. Your life will end, grow up and accept it.
