No, we don't.
But from the fact that they had to REMOVE a couple of HD-PPV channels to put up slates for these two we can infer they didn't have room available, so if it IS contractual why the hell would they remove viable sources of revenue before they knew they could broadcast SciFi/USA-HD in their place?
Not that it makes a GREAT deal of difference (we're not getting the channels, regardless) but it is a curious situation.
I would question whether HD-PPV channels are "viable sources of revenue". Until I see proof otherwise, I would say there are very few people that order HD-PPV's. They may have removed them because it was costing more to have them up than they were generating in revenue. I've seen more people on this forum that scoff at paying the prices for the HD-PPV than I have seen that are willing to pay for them. I think I have only purchased one in the entire time they've been up.