Your idea of having Ufthak et al. and Zaefa et al. coincidentally land up on the same planet in a future story was very clever. I’d want them to remain completely ignorant of each other but putting Zaefa in an oh-omnissiah-not-this-again situation would be hilarious.
Ditto a ‘children's’ book told from the point of view of Nizkwik and Princess. Brave, heroic, and utterly unreliable narrator.