Board Thread:Arrow discussions/@comment-807326-20171117030359/@comment-5635877-20171209012851

SeanWheeler wrote: Who at Warner Bros is in charge of the embargoes? As I already explained, there isn't an embargo as such any more. Each case is now a separate matter to be negotiated and "windows" where characters can be used arranged.

The Flash season 3 was written so that Wally could become the Flash should Barry be withheld from CW, luckily that didn't happen and now we have a new arrangement for the use of original DC characters.

But to answer your question, the chief executives and senior management of BOTH WB and DC decide who can be used. CW have to deal with both parties, anything is now possible as we will see in the future. Before CW shows couldn't even mention the likes of Superman or Batman, that's all changed.