To add to the mystery, the company that the redditor claims posted these has a private Vimeo page with this one upload publicly visible.
It’s from the deleted scene with Luke and 3po.
They also have these 3:
https://vimeo.com/1114746661
https://vimeo.com/1114758654?from=outro-local
https://vimeo.com/1114770007?from=outro-local
I thought it looked a little Tunisia-ish but I didn’t want to hope in vain! At the risk of getting burned, this is starting to seem like it would have to be a very elaborate hoax at this point.
(And as an aside, that shot of the lone asteroid hurtling away is giving me big Eraserhead vibes)