You're thinking of the wave after that. Ninjor listing is still up, with "Currently Unavailable" as the status. My preorder says July 3rd ship date along with Claw Skele.
RE: BA Skeletor, it must have just been a very tiny print run. Mine had extremely-loose hips, like he had problems standing. I wanted to give Mattel feedback about it so I contacted CS, and they flat-out told me they had none to ship out as replacement and had none on the way. It's another reason mine stays on Panthor, he likes to do the splits otherwise, lol. It's not even out of the ordinary for this line, as the Webstor/Buzzoff/Faker line was also weirdly produced and distributed. Shame because those figures are also all stellar.