User blog comment:Flashdancer911/Zoom: who he CAN and CAN'T be... (theory only)/@comment-24042303-20160214020256/@comment-24042303-20160214173729

I can't imagine it's a current character though, such as Diggle, Lance, Damien, etc. I don't think they'd wanna switch around shows that much. However, they could bring in a former character like Roy, if Colton Haynes is up for it.