If they plan on selling a stand alone block, I would assume they would and could sell one with the card on it and or vice versa. I'm sure it will come out eventually. Of course, they would make more money selling the Hybrid only and then the block only at a later date. Probably piss a lot of people off if they did that after showing it off.
Too bad they did not team up with a block MFG similar to what ASUS and EK did. I thought that was pretty cool. I'm sure that would have sped up the process.