Board Thread:New on Arrowverse Wiki/@comment-807326-20160206040643/@comment-27178728-20160215214337

I just understood! In, they're showed Supergirl and the 1990 The Flash. These two shows are property of CBS.

So maybe, we have two universes: DC CW Universe (Arrow, The Flash, Constantine, Vixen, DC's Legends of Tomorrow) and DC CBS Universe (1990 The Flash and Supergirl) who will crossed over!

What do you think?