Wow, you are right on the money...my Rishi BP photos from SDCC were so dark I didn't even recognize them. Good call.
This to me is the "lost BP" which seems to have fallen off the production schedule somehow. It's the only 1 of the 3 new CW BP's that isn't a Target exclusive, but was originally slated to hit retail well before either of those other 2. (Ryloth and Abregado) 8/7 as opposed to 9/6.
I realize, based on the most recent QA response, that those SDCC listed dates are outright lies, but it seems like at least priority-wise they would have a good grasp of which BP's are going to be released first.