I am currently working on Iron Age:
I have created a new reality: Earth-TRN252 who design the earth destroyed by the Phoenix. The Iron Man who's gone in the time-stream, and we follow during the whole story, until his final death.
I was upon to create a new earth-designation for the era travelled in by this Iron Man, but the last page, with the heroes talking of this adventure, prove all of this happened on 616. So it's an aventure of an alternate Tony (in a way) in the main past universe.
So, I have a question in suspense. What is the name of the final team ? As for Logan's Mutant Team (Earth-616), I think this could be Iron Man's Team (Earth-616) or Future Iron Man's Team (Earth-616). The earth designation is 616 for the earth of creation and the origin of almost all the members of the team.