• Arrow is CW Network series developed by writer/producers Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg.

Arrow is CW Network series developed by writer/producers Greg Berlanti, Marc Guggenheim, and Andrew Kreisberg. (Photo : Facebook)

The latest details and spoilers for "Arrow" season 5 will feature Manu Bennett's return in the 100th episode and more scenes for Speedy in the show soon.

It seems that "Spartacus" star Manu Bennett teased that he will return as Slade Wilson/Deathstroke during the four night crossover in "Arrow" season 5. The episode will also mark the show's 100th episode as the plot synopsis will have Oliver Queen/Green Arrow (Stephen Amell) wake up in an alternate reality where he never got on The Queen’s Gambit. He is about to get married to Laurel Lance (Katie Cassidy) and his parents Robert and Moira Queen (Jamey Sheridan and Susanna Thompson) are alive, however, Oliver begins to notice small imperfections that will question this new reality.

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Meanwhile, Felicity Smoak (Emily Bett Rickards) and Team Arrow seeks the help from Barry Allen/The Flash (Grant Gustin) and Kara Danvers/Supergirl (Melissa Benoist).

Deathstroke in full uniform was spotted in the 100th episode's behind-the-scenes photos and in the four night crossover, but fans are still wondering if the man in the suite could be Bennett himself or someone else. Bennett teased that the audiences will have to find out the answer to it during the 100th episode, ScreenGeek reported.

Slade Wilson was the main villain in "Arrow" season 2 and was responsible for training Oliver during his five years in the Lian Yu.

In other news, TV series star Willa Holland tease that audiences will see more of Thea Queen as Speedy in the future episodes of "Arrow" season 5 soon, BleedingCool reported. Thea gave up her life as a vigilante to help her brother Oliver in his term as Mayor of Star City. Thea temporarily became Speedy when Oliver was kidnap by Tobias Church (Chad L. Coleman) and his gang.

Speedy is also shown joining her brother, John Diggle/Spartan (David Ramsey), Barry Allen/The Flash (Grant Gustin), Kara Danvers/Supergirl (Melissa Benoist) and the legends fight the alien invaders known as the Dominiators during the four night crossover.

Previous reports revealed that "Arrow" TV series could end after season 5 as Amell and executive producer March Guggenheim talked about their attempt to put "Arrow" from its outline and they are focusing on "rehabilitating" that show rather than doing another chapter.

Amell stated that season 5 of "Arrow" will be their throw-down-the-gauntlet year for them, either they are going to do what they do and do it well or it will likely be their last year. Amell added that he and the rest of the people behind "Arrow" are looking for the "magic formula" to continue the show after its fifth season.

Guggenheim, on the other hand, sees that "Arrow" Season 5 will only be the end of a certain chapter and not of the entire show.

"Arrow" returns for its 100th episode on Nov. 30 8pm on the CW Network.