I know I'm way behind on commenting on this, but I didn't want you guys to think I totally ignored it! This is an interesting idea -- but unfortunately at this time just doesn't seem feasible for numerous reasons. The main reason is we'd have to work out a lot of rules regarding previously-released items, under what conditions an item can be transferred, do ALL recolors have to be transferred as well, etc... A LOT of things. And that's not even getting into coding!
It's definitely an interesting thought however, something to ponder on. At the very least maybe some sort of system where you can basically GIFT ownership of a CW to someone when it's submitted? Not change later, but say, User A submits it for User B's birthday present and has rights go to them from the beginning? Something to think about!!