I have another motive for desiring Stephen to appear in the CB&MI13 book: I would love to see Paul Cornell write Stephen Strange. Cornell is such a joyful fanboy that I'm betting, if circumstances allowed him to do it and he wanted to write it (and if likes Strange), that it would be FANTASTIC. Stephen can take on Dracula and the Brian, Faiza, Blade, Dane, etc. and handle all of Drac's minion army. See? It practically writes itself!