The Flash executive producer, Andrew Kreisberg, said in a new interview that some big names will be coming back to the show before all is said and done, and while he neglected to reveal who they are, he did seem to indicate that they’ll be a key part of where things are headed as we sprint towards the finale.
He said “We have a couple of recurring villains, one major recurring character. It’s funny. Every year, around this time of year, I feel like there’s this speculation, no matter what show it is, that we don’t know what we’re doing — maybe we don’t — but there is a plan. There’s always a plan on every one of these shows. We set stuff up throughout the years that’s going to be paid off. Whether you enjoy it or not is something different. But we’re really excited about where we’re at, how these revelations are going to come [out] and how everything gets wrapped up by the end of the year.”
It’s interesting to wonder who those characters could be, , it could be that Kreisberg is referring to new versions of villains who have so far only made their presence felt in The CW series in a small way.