Richard Rider is one of the very, very, very! Few character whose father is (1.Alive (2.Not Evil or a Superhero (3.A crazy jerk who puts himself above his child (4.abusive or a deadbeat. I think the Rider family is such a huge part of Richards character so much so that you could never kill of his parents or brother or change his origin because that would destroy the entire core concept of the character. He's maybe the only Everyman character who is actually an everyman. God I hate that stupid new Barry Allen Origin. Don't get me started on Wally! I do think an orphaned, poor, street kid Nova could work, sense it would follow the general theme of what Novas about(A know one from know were who gets the chance to become a star metaphorical and physically)but that's not Richard. It would be a good setup for Richards legacy and it would be a lot better of an origin then Sam's shitty origin that has nothing to do with what Novas about.