Keep Wanda and Pietro as Magneto's kids
T'Challa and Ororo would still be married
Ben Riely would be alive only to discover that he is really Peter Parker
Keep Wanda and Pietro as Magneto's kids
T'Challa and Ororo would still be married
Ben Riely would be alive only to discover that he is really Peter Parker
Aunt May is dead.
If I had my way, I would reboot the entire Marvel Universe and each team would start they way they began back in the 1960's (or later decades, if they were formed later).