The Latest Arrowverse crossover set photos reveal Grant Gustin's Flash and Stephen Amell's Green Arrow trading suits. Filming on the Elseworlds event has been taking place over the last few days and Supernatural's Jensen Ackles stopped by over the weekend for a visit, which led to rumors that he would be playing Batman during the crossover. However, those rumors were laid to rest by Amell, who stated that Ackles was only there to hangout, not portray Bruce Wayne on the small screen.

The switching of costumes between Grant Gustin's Flash and Stephen Amell's Green Arrow was first teased in a promotional poster for the Arrowverse crossover event last week, but it only showed the character's heads. Now, thanks to some leaked images from the set, we have both actors in their new full suits, with Amell looking a little uncomfortable in his tight red Flash costume. Gustin looks far more comfortable in the Green Arrow suit, but he's used to wearing the super tight Flash suit on a regular basis. The photos are pretty funny, so it will be interesting to see how everything pans out when the show premieres in December.

The Arrowverse crossover event is taking place over three episodes spread out over Supergirl, The Flash, and Arrow. We're also going to see Ruby Rose's debut as Batwoman/Kate Kane as well as Elizabeth Tulloch's portrayal of Lois Lane. However, it's not clear what the exact storyline will be during the Elseworlds event. Arrow producer Marc Guggenheim has said that the event will fit into the same continuity as all three of the regular shows, so that will also be interesting to see how they put it all together.

The synopsis for the Arrowverse crossover states that Green Arrow, Flash, and Supergirl have to head to Gotham City to deal with someone or thing at Arkham Asylum who's tampering with reality. This is more than likely where Ruby Rose's Batwoman will show up. With that being said, it's easy to see where the rumors of Batman showing up in the series started. But, it seems that DC doesn't want to take away from Rose's debut, which is a smart call. Batman would more than likely steal all of the thunder from the event.

The Arrowverse's Elseworlds begins with The Flash on Sunday, December 9th at 8PM and continues with Arrow on Monday December 10th at 8PM. The crossover event then concludes with Supergirl on Tuesday December 11th at 8PM. Regardless of the vague story details, it clearly looks like Grant Gustin and Stephen Amell are having a lot of fun on the set with their new identities. DC fans are gearing up for what is sure to be a pretty crazy few nights of television that could have some pretty big implications for the future. You can check out some of the Arrowverse set photos below, thanks to the YVRShoots Twitter account.