User blog comment:B214/Question and Answers/@comment-220.255.2.61-20130602172537/@comment-9339850-20130602211720

I like the idea as well, like you stated it allows the characters from the current series to make natural appearances from time to time, which wouldnt be the case if it was some brand new character which would lead to there being weird ways on how they are connected to the current characters without there being some kind of retcon or weird forced connection to try to make it work