Welling, who is best known for portraying a young Clark Kent/Superman in the long-running show Smallville, had communication with Arrow showrunners earlier this year. He is reportedly appearing in Arrow’s final season in some capacity.
It is worth noting there is no official confirmation on what Welling’s role is as of yet. However, the show has an October start date. Whether the Dark Knight talk was a teaser or just a throwaway statement, will be known soon. If it does happen, it would make Welling the first actor to portray both Batman and Superman in live action productions.