It's true, and I just read on the photo thread; apparantly someone in that threat called HT about this figure, and someone HT says that they'll be releasing another batch to go with the tumbler. Buying it off ebay may have been the worst mistake of my life.
I dont think this will be the case, at least from my past experiences with HT.
When they released lost predator from the predator 2 series, a year after they release predator 2 and elder predator 2, there's still pics of elder and P2 on the box. But they didn't just 'release' those other preds again just because some people got to the collecting late.
They know how their older figs are worth easily around 500+ on ebay. And they want those to be rare coveted items as we see no signs of them re making those USCMs and preds. I think the OC is no different. It will go up in value, and HT wont be making any more of these. My 2C.