Maybe if Marvel was planning on wrapping up the Ultimate Universe entirely, but short of that I can't see it happening.
Nightcrawler, Jean Grey, Gwen Stacy, Peter Parker, Professor X, Mar-Vell, Richard Rider- Bring Them Back!!!
Come to think of it, isn't the Ultimate Universe becoming 616 what led to Ultimatum?
Wake me when Peter is brought back to Ultimate Universe and Miles was a weird dream Osborn planted using Mysterio tech or something.