Like The Flash and Arrow before them, Supergirl and the Legends of Tomorrow will up the excitement considerably to stand beside their fellow CW heroes onscreen. Now, we at least know what their feet look like together, as Stephen Amell reprises an old teaser to signal the start of crossover production.

Arrow star Amell shared the teasery tidbit over twitter, pointing toward a costumed gathering of himself, Grant Gustin’s Flash, Brandon Routh’s Atom, Caity Lotz’s White Canary, and the newest recruit: Melissa Benoist’s Supergirl.

The posed photo calls back to Amell’s tease of The Flash crossover back in the yesteryear of 2014:

Thus far, precious little is known of the four-way crossover between The CW’s DC powerhouse, other than recent comments from executive producer Greg Berlanti teasing one unifying threat, rather than different villains for each episode. Prevailing theories have suggested that the four-way teamup might somehow bring Supergirl’s Earth into the known Arrow-verse, if only to facilitate easier crossovers, while Amell also recently spent time with another Super-star.

We’ll likely find out more this week with The CW’s TCA press tour panel, but how does the Arrow, The Flash, Legends of Tomorrow and Supergirl look, if only boots on the ground?

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