When Belkar dies, what will become of his soul?

[Peelee]

I'm sure this has been brought up before, but there's technically no guarantee Belkar actually will die. The prophecy only says "Belkar will draw his last breath, ever, before the end of the year" and that he "should savor his next birthday cake". Could this not technically mean he becomes a being which neither needs to breathe nor to eat?

And that he shouldn't bother funding his IRA, and that he's not long for this world.

Many theories have been presented to resolve all of these without having him die. None, IMO, have been particularly convincing.