Thread:ADour/@comment-39545992-20191010214347/@comment-16461120-20191011005542

Major X's mother is dead per the sixth issue, ergo she can't be Ororo-616 who is very much not dead therein.

This sort of thing is nothing new, there are literally dozens of realities described as the "future of Earth-616," such as Earth-811, Earth-928, Earth-982, Earth-1191, Earth-14412, Earth-61112, etc. and in this case he's a time traveler from the divergent future of Earth-616 we're calling Earth-TRN757.