Legends of Tomorrow has Justice Society of America. The Flash has (the real) Jay Garrick. How about we bring a little Earth-3 to the Waverider and bring the JSA founder into the loop, shall we?

The Flash unveiled the Man in the Iron Mask on Tuesday, and it turns out Zoom was hiding DC's first speedster over on Earth-2. Now that Henry Allen's (John Wesley Shipp) doppelganger is suited up once more, fans are wondering if Hourman's (Patrick J. Adams) Legends appearance will harbinger the arrival of the Crimson Comet.

"There have been endless suggestions and possibilities [that I can cross over to Legends as Jay Garrick]," Shipp said, according to The Hollywood Reporter. "Jay Garrick formed the Justice Society. Not that I know of anything concrete, but this character is so open-ended. Henry Allen had a shelf life. He had one purpose: to be there to support Barry. Jay Garrick, it's wide open. Who knows what we're going to see? That's very exciting."

Marc Guggenheim, executive producer for Legends of Tomorrow, hasn't confirm which JSA members will appear in season 2. He did, however, tease a pretty epic lineup while speaking with Entertainment Weekly.

"I can't go spoiling stuff they're doing on Flash," Guggenheim said prior to "The Race of His Life," sidestepping questions about Barry (Grant Gustin) and Jay. "Phil Klemmer, Geoff Johns, Dan Evans, and I sat down in a room at DC with a list, and it's a largo list, of the members of the JSA. One of the more fun afternoons I've had recently is sitting down and actually composing our JSA lineup, our perfect JSA lineup. That was a blast to do."

Will the epic Supergirl/Flash/Arrow/Legends of Tomorrow crossover give us the answers we're looking for? Find out when Rip Hunter's (Arthur Darvill) crew returned to The CW this fall.