It seems like Smith is most hopeful for a possible Arrow directing job based on these comments, and it’s not hard to see why.
Not to mention the rather substantial differences, visually between it and all of the CW shows.
As for Gotham, that seems like a much less likely possibility at this point, since it’s on a different network and is run by an entirely different set of individuals.
Following his work on Green Arrow comics in the past, Smith has previously stated what he’d like to do with an episode of the show, if he could, most of which have been on the receiving end of some notable fan support.