When I first saw the photo I was thinking that it was Blue Snaggletooth but now I feel like maybe it's Luke Jedi. In the picture below, what appears to be the belt buckle on a Blue Snag could be the beak from Logray's headpiece and the "boot" is actually his pouch. If you look at the angle he's facing, those two pieces line up with what was orignally thought to be silver on Snags.
If you look at the head (blue circle) it looks more like a Luke Jedi hairline rather than Snags, who has black hair. The hand (red arrow) looks a little more like Blue Snags, but the angle of the photo and the position of Logray in front of the Jumbo figure could be putting the size/orientation out of whack making this a bent arm from Luke as much as a straight arm from Snags.
The only thing I'm not positive of is if you look at the yellow arrow, which can explain the top part of what was thought of as the boot, doesn't necessarily explain what also appears to be silver boots seen from underneath the shelf. that could be a trick of the lighting, though.
At this point, looking at the photo again and reading what GG tweeted yesterday, I'm leaning towards Luke Jedi at this point. However, I do still believe that there's a Blue Snag in the works based on the Insider photo from 2010 that shows early Jumbo figures and some vintage Kenner 3.75 figures. That photo showed the Gam Guard and Yoda long before we got wind of the Jumbo versions. Blue Snag, Bossk and AT-AT Driver are also in that photo and it could be an early roadmap to their releases. No Luke Jedi, but we've also gotten Jumbo R5-D4 and the DSD since that photo was posted and their vintage 3.75" counterparts weren't shown.