With the revelation that we might still be in the Hall of Doors, I'm going to dredge up this thought I had a while back.
We got to revisit the oasis, so I'm still hanging out for a revisit to the Highest Heights, for several reasons:
1) Learning more about the leviathan, obviously. That 100% has to become relevant at some point.
2) Artifice was unconscious through most of the drama. Why?? Was the future crew hanging out somewhere in that scene as well???
3) No one beyond Dot, Cleo & Merlin (... and presumably now also the Biological Man) know about the fold-leaking-from-the-skin problem. Just a small cosmic revelation they've all been quietly sitting on.
4) Only Dot knows that they were the one to pilot the sloop back down; everyone else is still under the impression that it was probably Merlin. Probably irrelevant now, but I think Merlin could use another blow to his ego.