Now that Smith is once again back in the DC TV universe with Supergirl, making stops to direct an episode of Arrow and Legends of Tomorrow would complete his journey through the universe.
As Warner Bros and DC Films work on expanding the DC Extended Universe on the big screen, The CW has continued to add programs to the separate DC universe it has built on TV.
During the DC TV portion of the CW panel at the 2016 Summer Television Critics Association press tour, it was revealed that not only is Kevin Smith returning to direct an episode for season 3 of Flash, but will also step into the world of Supergirl.
Not only have the two series crossed-over already once before, but now a crossover of sorts will happen behind the camera too.