no not switching PCs unless you like.
suppose a character "dies" they have an afterdeathexperience,
a fireside chat with god so to speak.
and are told some things about why the world exists the way it does, why the PC is so special, and perhaps a deal is made with a deity of some sort to fix the world [carry out the dietys plans] and they are ressurected perhaps as per the ressurection spell? or better/worse having a deity holding a debt against you, but having interst in keeping you going?
Interesting, I’ve been doing that in my Runequest games for years, but then the setting (Glorantha) has a really rich mythology that provides great context for things like that. I shouldn’t be durprised though. Rob Heinsoo the chief designer of 4e is a long time Glorantha and Runequest fan.