I know this would never happen either, but Nightcrawler has a very interesting origins story including gypsies, the circus, a magic wielding foster mother and having to deal with an insane older foster brother. I would culminate in an angry mob from where he was saved by Xavier. It could tie into the appearance of Mystique, Destiny and Rogue, or even with the magic of Dr. Strange. There is a lot of potential to do almost anything with that since Kurt never grew up in a regular suburban household.