The way he's been written so far, it's actually not the most obvious route.
I agree. I'm not saying they won't make him a villain - I'm saying if it happens soon, it'll be massively out of character and bad writing, IMO. The guy has a big problem with Oliver killing criminals and yet, just because he doesn't like Oliver (or even hates him), he, himself will start killing/harming innocent people?
Not to mention that he has, as I said, taken the high road. He's angry and sad, yes. But his actions have been above-board. He keeps the secret, he doesn't try manipulate Ollie with his secret or blackmail to his own ends. He doesn't try to manipulate Laurel into hating Oliver/the Hood to keep her with him.
but the further they develop his character the least likely it seems for him to become the dark archer without being forced and out of left field. It just doesn't seem in character for him.
I very much agree.
I think I'd like to see Tommy take a hit for Ollie, when the Dark Archer attacks him.
Me too, but I want Tommy to survive it.
Now, I just really, really hope Oliver is smart enough to reveal the recording to Tommy
before attacking Malcolm. If he doesn't, it's just rank stupidity on Oliver's part (since I doubt he plans to be discreet about the Hood going after Malcolm when he does make a move). If Tommy hears the evidence, he will know his father is bad (allowing for some denial, as Oliver had, but Tommy hasn't historically been close with his father, unlike Oliver with Moira). Tommy could understand at least that
something had to be done, even if Tommy preferred going to the cops. He might still hate Oliver for killing/trying to kill Malcolm (to me that depends on how much Tommy learns about the Undertaking and if he learns about the boat - another recording he should hear, despite the distorted voice). It could end very very badly for Oliver, since Tommy knows his secret and where his lair is.
However, it'd probably be worse if Tommy didn't know about his father's plans in advance, because then he might think Oliver is trying to kill his father over tax evasion of building-inspector-bribing, or whatnot. He has big issues with the killing, and I don't see him being as willing to listen to a recording of Ollie's after Ollie tries to kill his dad.
I really do think Oliver needs to start with "Tommy, I have something I want you to listen to" and then just play the recordings. Since Oliver's mother is also involved, and Oliver is acting on her guilt, too, Tommy might be more likely listen - it's not just an attack on his own. And they could bond over a shared sense of betrayal/disbelief in their parents.
Ollie talks about how Moira lied to him, lied to Thea. And yet I still somehow think he might end up lying to Tommy and Thea about their respective parents when it comes to this.