The proto is. I have questions about the production figure.
The only reason I question the Buck is the production process. If they're going to recycle parts essentially for this figure, including Trev's sculpt, why put 2 versions of the head into production when you could produce the one in the newer format and just have the painters do another 3000 or so.
The paint job on this AOTC proto doesn't look like the proto images of the Clonobi figure, so it's possible they started the AOTC figure long ago, saw the opportunity to make Clone Wars Obi-Wan, sidebarred the AOTC figure, modified the head for the armor body, and put out the Clonobi prototype.
We'll know tomorrow. If we knew what other accessories he came with, we could guess better how long this figure was planned. If AOTC was before CW, I would think there'd be more accessories than we've seen so far.
Dangerous and disturbing this mystery is.