As heirs embody their aspect, do you think that if worse came to worst, an heir of space could sacrifice themself to become the new universe?

I wouldn’t say ‘embody’ specifically as a 100% Heir thing, but- No, I don’t think so? The Genesis Frog seems to be a sort of constant. What they may be able to do at most is link their Hearts- Like how Snowman’s lifespan is tied to the Universe’s?