'Arrow' Season 4 SPOILERS: Premiere Details on Olicity, Thea, Diggle, Damien Darhk, Flashbacks

The Season 4 premiere of Arrow airs on Wednesday, but that doesn't mean we can't dive into a few spoilers before the episode. We've got plenty of teases for you on Olicity, Thea, Diggle, Damien Darhk and the flashbacks.

TVLine viewed the premiere and posted an article with multiple tidbits about the episode, so let's run through them individually and dissect them.

First, the site notes that there are "still a couple major surprises in the hour." This is refreshing to hear given that we've seen what feels like 50% of the episode from promos, trailers and the like.

Interestingly, TVLine reports that Felicity (Emily Bett Rickards) is "deliriously happy" in her new suburban life with Oliver (Stephen Amell), but she's secretly bored to tears by it all. When they return to Star City, some revelations will come to light. And to top it off, the ring that Oliver had in the souffle in the trailer actually belonged to his mother.

Moving onto the team in Star City, Thea has been beating criminals to a pulp during her field work. Oliver notices her thirst for violence, but TVLine hints that others on the team might not be as aware of it. And speaking of Thea, she has moved out of her loft after Ra's al Ghul stabbed her there and left her to die.

We know from numerous interviews and press releases that Oliver and Diggle's (David Ramsey) relationship will remain frosty throughout at least the early portion of Season 4, and that becomes evident in the premiere when Diggle fires "a particularly harsh statement Oliver’s way about the darkness inside him."

Damien Darhk (Neal McDonough), the main villain of the season, will make "his powerful presence and grand plans known quickly to Star City’s top leaders." Interestingly, TVLine notes that no one wants to be mayor, including Walter Steele, whom we haven't seen in quite some time. The site also compares Darhk to a more sinister version of Buffy The Vampire Slayer villain, The Mayor.

The lack of information about the flashbacks this season is intentional, as there is an Easter Egg and a major twist in them.

Laurel Lance (Katie Cassidy) has fully become The Black Canary and even saves her father from an attack. She and Thea then leave without Diggle to go recruit Oliver's help.

Someone utters the line "If Oliver Queen always made the right choice, he wouldn't need you." We'll guess that Ollie says this to Diggle.

Finally, "at least two characters are keeping important secrets."

What do you think of these spoilers? Let us know in the comments section below.