I went ahead and read that piece at ComicVine about Batman #10. Seems the reveal was yet again some little tidbit, throwaway story(or two) through the decades on this character. Not sure I like actually fleshing this out.
It's the same idea as "What if Jason Todd was alive again?". We got that and Red Hood was sorely mishandled to the point most were just agreeing to kill him again.
Will people be clamoring for a rewrite on this reveal in Batman #10?