Crisis on Infinite Earths ended with a surprise tease of the Wonder Twins, but whether Arrowverse fans will see them any time soon has yet to be determined. The CW finished off their massive five-hour crossover event with Arrow, The Flash, Supergirl, Legends of Tomorrow, Batwoman, and Black Lightning. The event, adapting Marv Wolfman and George Pérez’s iconic 12-issue series, became a new beginning for Greg Berlanti’s ever-growing franchise of DC characters. Not only did it honor what The CW has been doing for the last eight years, but what had come before. With special appearances from Smallville, Birds of Prey, Superman Returns, the DCEU and more, it honored the majority of DC’s live-action adventures.

One of the consistent things that the Arrowverse does with their shows and crossovers is including fun Easter eggs and nods for DC fans. Sometimes it comes in the form of a name-drop, while other times it’s an actual visual reveal of a character or famous storyline. Crisis on Infinite Earths was no exception, particularly in the final seconds as the heroes discovered that something had escaped the Hall of Justice. With the sound of a monkey in the distance, the famous Wonder Twins character Gleek became the final surprise of the crossover. While he is never seen, Gleek’s name is shown on his cage door, hinting at an appearance in the future. But with Gleek comes the famous super-powered twins and the question if they will ever join the Arrowverse.

In an interview with Variety, executive producer Marc Guggenheim shared how Gleek made it into the five-hour crossover. Gleek was always meant to be the final little DC surprise of the crossover. But while Zan and Jayna were never seen, the Wonder Twins were almost in the crossover during the early writings of Crisis on Infinite Earths. However, with budget and time limitations, the plans had to be changed in the end.

While Guggenheim doesn’t share when the Twins might be seen, the crossover has now at least allowed for any of the shows to use them, should they want to. Whenever the time comes for the Arrowverse to introduce the Wonder Twins, it won’t be the first time they have appeared on The CW. In Smallville season 9, Zan and Jayna made their live-action debut in the Tom Welling-led drama, played by David Gallagher and Allison Scagliotti respectively.

“TBD. That was something where we knew we wanted to end with that fun bit. There were early versions of the draft that had the Wonder Twins actually in it. I consider the Wonder Twins kind of a jump ball: We’ll see what show wants to grab it.”

If the time ever comes for them to join any of the Arrowverse shows, The Flash or Legends of Tomorrow would most likely be the best fit for them. With the youthful energy they bring to stories, either two of those shows would work well with them. While Smallville only gave Gleek a visual nod on Jayna’s phone case, the Arrowverse is no stranger in bringing famous DC animals to life such as Gorilla Grodd and King Shark. Hopefully, Arrowverse fans will see the Wonder Twins and Gleek sooner rather than later, following Crisis on Infinite Earths.

Source: Variety