• "Legends of Tomorrow" is a spin-off series developed by Greg Berlanti, Andrew Kreisberg, Marc Guggenheim and Phil Klemmer.

"Legends of Tomorrow" is a spin-off series developed by Greg Berlanti, Andrew Kreisberg, Marc Guggenheim and Phil Klemmer. (Photo : Facebook/DC's Legends of Tomorrow)

New "Legends of Tomorrow" details will feature Roy Harpers possible appearance, Arthur Darvill on team allegiances and episode 6 trailer features Connor Hawke, Deathstroke and future Oliver Queen.

An extended trailer for episode 6 in "Legends of Tomorrow" titled Star City 2046 will feature Connor Hawke (Joseph David-Jones) as the new Green Arrow as Sara Lance/White Canary (Caity Lotz) confronts him and asked what happened to Oliver Queen (Stephen Amell), the original Emerald Archer. In this timeline Star City is now overrun and ruled by criminals and thieves as the city is now left in ruins and everyone thinks that Oliver Queen is now dead.

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Episode 6 will also feature the return of "Arrow" season's main antagonist Deathstroke, but it is unknown yet if this is version of the character is Slade Wilson (Manu Bennett) or another person taking his name, ScreenCrush reports. The trailer ends when an unknown hooded man is standing on top a van and Sara guessed that this could be Oliver Queen who ahve survived this era.

"Arrow" star already tweeted several photos of future Oliver Queen for "Legends of Tomorrow" as he sports a new costume and more bearded with character's classic goatee. Executive Producer Marc Guggenheim stated that this version of Oliver Queen is based from Frank Miller's comic book storyline "Batman: The Dark Knight Returns". Connor Hawke in the show will not be Oliver's son like in the comics, but instead young youth who is inspired by the Green Arrow's heroics and tries to honor the mantle and continue to fight and save Star City.

In other news, Arthur Darvill talked about team allegiances in "Legends of Tomorrow as he points out that the show will show more character interactions and how allegiances are not necessarily constant, Bleeding Cool reported. Lotz added that each character in the show are known for their individual skill set and they are sent in specific missions for instance Leonard Snart/Captain Cold (Wentworth Miller) being an expert thief and Sara being a seasoned assassin.

Lotz added that the audiences can learn more about the character through their interaction with one another bringing out a side of them that is not yet featured from both "Arrow" and "the Flash" TV series.

Lastly, "San Andreas" star Colton Haynes teased fans from last year's AsiaPop Comic Con event that Roy Harper/Arsenal could be featured in "Legends of Tomorrow" stating that "he is one call away" if ever they decided to include him in an upcoming episode.

Arsenal is one of the many DC characters that are rumored and teased to be part of "Legends of Tomorrow" along with Jonah Hex (Johnathon Schaech) and John Constantine (Matt Ryan).

"Legends of Tomorrow" will return on Thursday 8PM on the CW Network.