Thea's resurrection would be explained in "Arrow" season 4, according to the latest spoilers, as Damian Darhk will emerge to become a super villain.

Inquistr noted a tweet from Stephen Amell in reference to Thea which suggest that she would need some major help.

"Is Thea finally caving to the side effects of the Lazarus Pit waters?" it said. "Being raised back to life after being killed by Ra's al Ghul would definitely have an impact on just about anyone, but could this mean that she's finally going mad? Hopefully, the opening episode of Season 4 of Arrow clarifies the whole situation as Thea anxiously awaits some help from her brother."

Meanwhile, Damian Darhk, a minor character in the comics, will get makeover to become a major villain in "Arrow" season 4, according to spoilers from Movie Pilot.

"The name has been kicking around the internet for awhile, but the Arrow episode 'Al Sah-Him' confirmed it. Damian Darhk will be the villain of Arrow season four," it said.

The website added, "Ra's al Ghul told Oliver about Damian, a man who thought he should head the League of Assassins, and then took off with their secrets and some waters from the Lazarus Pit to form his own organization."

"We know that organization is HIVE, which in the comics is known for having some super awesome technology. So Arrow season four may have a villain as devious and physically capable as Ra's al Ghul, but with sci-fi technology to back it up."

Aside from Damian Darhk, spoilers claim that H.I.V.E would also emerge as a villain in "Arrow" season 4.

David Ramsey, who plays John Diggle, had told E! News, "We are going to delve right into why H.I.V.E. hired Deadshot to kill Andy and what H.I.V.E. is all about to begin with. There will be a lot of Diggle's connection to H.I.V.E. next season."

Watch out for more "Arrow" season 4 spoilers which will be published when they come along.