Wow! A straight out answer that the Horde Troopers are being re-released. Awesome! I wonder if they'll come with some alternate heads as an incentive (e.g. Filmation Hordak, Eternian Invasion Helmet, etc).
I'm not sure about the "very different" SDCC exclusive. So, "different" that it isn't even a MOTU action figure? Or just a very different "figure" like a beast or vehicle?