As cool as an idea that might be that book wouldn't last long. As writers come and go the first thing new writers would do is go down the list of hmmmm what mutants are open to be used for this *insert x book* that's why someone like Prodigy and eye boy are being used right now in this book even though neither is popular, but Spiral people remember the name and would use her since his power set is so diverse if she was a mutant.