User blog comment:Flashdancer911/Zoom: who he CAN and CAN'T be... (theory only)/@comment-4588264-20160213190229/@comment-4588264-20160214163107

Yeah, that's what I was thinking too, but at the same time Eobard Thawne managed to fit his way in there back in S1 when we didn't know a thing about him. There's multiple ways he could tie into the plot somehow.