Warning! Potential spoilers ahead.
From Making Star Wars:
“[…] While grabbing coffee down in the area of the set recently, I ran into some people associated with the production from last year and this year. They seemed as curious about me as I was about them. That said, one of them showed me some photos from their phone of the outrageous “kit bashed” elements we’ll see in the series. Remember that Artoo unit with legs story I wrote about last year? I brought up the Kenner inspiration and they said “yeah, you have no idea” and then what they showed me was pretty amazing.
My Little Green Friend!
I then saw five or six unfinished Yoda species puppets in various states of completeness. You could see the eyes and that they were Yoda-like for sure. While I was checking it out, one of then told me George Lucas contributed story elements to the episode (I believe they said it was the sixth episode of the first season but I could be wrong). The episode will have a cast of characters that are the same species as Yoda. They seemed to also infer that the species will finally be named in the episode.
For years, it was known that dealing with Yoda’s backstory and species was off limits to. everyone. I theorize that George Lucas figured out he might as well leave his mark on a part of Yoda’s canon before someone else does. That last sentence I just wrote was conjecture in case you missed the part where I said “I theorize.”
If this scoop pans out as described to me, we should have an episode where The Mandalorian goes after a bounty that is a group or family of little green people the same species as Yoda. Based on the differences in the puppet’s technology I glimpsed, I would say they aren’t just background or featured puppet extras so to speak. It seemed like it was a serious endeavor to make these Yoda “people” screen ready. […]”