The Arrow/Flash spin-off has been officially titled Legends of Tomorrow and a full series has been ordered for early 2016.

Synopsis:

When heroes alone are not enough… the world needs legends. Having seen the future, one he will desperately try to prevent from happening, time-traveling rogue Rip Hunter is tasked with assembling a disparate group of both heroes and villains to confront an unstoppable threat – one in which not only is the planet at stake, but all of time itself. Can this ragtag team defeat an immortal threat unlike anything they have ever known?

The cast includes Victor Garber (The Flash); Brandon Routh (Arrow); Arthur Darvill (Doctor Who); Caity Lotz (Arrow); Dominic Purcell (The Flash) and Wentworth Miller (The Flash).

Greg Berlanti, Marc Guggenheim, Andrew Kreisberg and Sarah Schechter are the EPs.