We already know tha t Peters will play a hairdresser and the grandson of Joan Collins' new character in the new season, but that doesn't mean that hairdresser isn't Michael. A lot could have happened to Michael within the show's time jump. Since Jessica Lange likely won't return for season 8 (she parted ways with the series after Freak Show), it's possible that Michael was adopted by someone else following Constance's presumed death/imprisonment/etc. That could be how he ended up in Collins' care.