So this is pretty anticlinactic. They're dumping their no longer viable Ultimate line and saving the handful of characters that people would actually care about (though aside from the Spider cast, I really can't see who that would be). Hardly seems worth a year of buildup and all this fanfare.
This is probably a fair summary. It's an honest business tactic. Marvel probably would like to save the viability of a few Ultimate properties and that's sound practice.
And whereas I'm not opposed to this happening (and don't truly have a horse in the race as I've never read anything Ultimate) - I am curious if there will be any easter eggs which make it more for the average reader/collector. Something like the alien suit; something which will contribute in a new original way for more than just the interim.
If that looks like it will be part of the scheme, I may buy. If not, this'll unfortunately make at least a half dozen skipped events.