Can someone help me, I don't read much omegaverse. Is it possible that Lyle will become an...

Not every omegaverse have the same rules. So it might be possible here, I guess.

No, Lyle remains an alpha.

I mean it could happen but I didn't see it that often in the omegaverse I've seen.... But I won't mind if it happened╮(￣▽￣)╭. Usually in omegaverse when an alpha fall in love with another alpha and they are the bottom they just experience things like an omega does because of the s*x is different from what an alpha does... guess we'll have to wait and see.. personally I prefer if he stayed an alpha though I won't mind it that much

No usually only dominant alphas can turn their partner into an omega

In this one we know it can happen. Lyle’s brother’s mate was an alpha, and now he is pregnant and an omega. But that may have happened because the brother is a dominant. And I would actually be sad if Lyle be came an omega.

Where is it mentioned that Lyle's brother's mate was an alpha??

I think it’s mentioned multiple times in not straightforward ways, like how Ash and Nick has a history “before” (when he was still an alpha).
But in chapter 38 (yes i just searched for the exact chapter because for a minute i thought maybe i imagined this) Kyle says that “it was unexpected that Nick “became” an omega” so that made it pretty obvious.

And I don’t remember where it said he was an alpha, but I know he was. If I remember correctly even Ash mentioned this at one point, that he started dating alphas, like Nick, because of the first kiss with Lyle. But im not gonna search for this exact moment, because can’t remember where it is in the story. So I might be wrong.

I checked it and wow, it's really written there. Maybe it's true. On second thought, (I am not trying to portray Omegas as feminine, but it's rather unusual in ABO) Nick's build really resembles Carlyle's. I remember looking at him in a past chapter and thinking "He's taller and bulkier than a dominant Alpha (Carlyle's brother)"
Thank you very much for explaining.

Hi i wanna clarify something here. First of all Nick (Kyle’s husband) is not an alpha, he’s a beta but later turned into an omega and one of the reasons is that his husband is an dominant alpha. Both Ash and Lyle are normal alphas and if you read DTR throughly you can see Karlyle also said something like “this feeling like what omega does” and that simply because the sex omega usually experiencing (being bottomed) compare with alpha (being top) are different. About why Ash decided dating Nick, this is kinda an exception for him too, Ash misunderstood that Nick’s an alpha because of his build, but then he still decided to go on hanging out with Nick because he’s a beta. Later when Nick turned into an omega and started dating Kyle, Ash cut all of his connection with Nick (those details were only mentioned in KyleNick novel- Egg Benedict so it’s kinda confusing when you only read DTR)

Karlyle will not turn into an omega and he can’t get pregnant because in this story, alphas can’t get pregnant. The case of Nick is totally different, Nick is a beta and he then turned into an omega because it’s his “hidden trait” and he was also affected by Kyle. Both Ash and Karlyle are normal alphas so the pregnancy won’t happen

Oh, i see. I don’t know then why i assumed Nick was an alpha before, but thanks for clarifying :D

Thank you so much for everyone's answer

Thank you very much for the explanation.