I think we're all going to be poring over Scott's words and trying to infer from various pieces of information (e.g. how many documents, who got them, etc.) whether new national HD is coming tomorrow or the next day.
It's pointless, of course. Scott is giving us what he gets and it's been apparent for some time now (even predating the AMC-14 failure) that either his sources are "screwing with his head" or, more likely (since Scott is confident in those sources) that Dish is screwing with them. Whether Dish doesn't know what it's doing or things are really in flux or Dish just likes to play sadistic games is immaterial. When (if) we get the channels we get them; documents, whispers, phone calls, etc. just don't seem to be giving us any information.
It's great to speculate but I think a 50-50 chance of new national HD by May 1st is a reasonable guesstimate, regardless of any "rumors".
However, I am glad Scott is giving us what his sources are giving him since it's been entertaining, at least.