The first parallel that popped into my head about Lila and Adrien is that they're both good at disguises.
Lila has long, ginger hair with green eyes.
Daphne has glasses, black, medium lenght hair, and blue eyes.
Cerice has a brunette pixie cut and brown eyes.
Iris has blond hair in a ponytail and (I think) dark blue eyes.
There's the butler/maid outfit with black hair up in a bun and green eyes.
The new Hawkmoth is currently just a purple figure for us and even uses multiple voices to hide who she truly is.
Adrien is well, Adrien. (I can't really come up with something unique for him as Adrien)
Felix is identical to Adrien, so all Adrien needs to do to "be" Felix is just to change his hairstyle and wear a suit.
Chat Noir has a different hairstyle than Adrien and has cat-eyes.
Cat walker has green hair in a ponytail and has cat-eyes.
Aspik is bald. You can't even see his ears, and he have snake eyes.
Even when he's Chat Noir without being transformed, you can't be truly sure it is him because you can't really see his whole body (banana noir and when he used boxes in oblivio).
Luka and claw Noir knows Chat Noir is Adrien.
Luka and Ladybug know Aspik was Adrien.
No one knows Cat Walker was Adrien.
(Bunnix gets excluded because of time-travel)
No one has seemed to figure out Lila's identities. Heck, we don't really know who she is!
It's said, either by themself of other people, that they know multiple launguges.
Adrien knows French, English, Mandarin, Acient greece and Japanese.
Lila says she knows multiple launguges (she may have lied, she may have not).
There's also that they both know Non-Verbal Code/Launguges (I'm not sure what to call it).
Adrien knows Morse code.
Lila knows Sign Launguge.
Umm so I had a thought...
You know how Marinette and Gabriel are supposed to be foils, and there are clear mirrors in both their personalities and their ambitions. Except- you know, Gabriel is evil and power hungry and selfish, whereas Marinette is motivated by justice and is incredibly self-sacrificing.
What if Miraculous continues to draw this parallel between protagonist and antagonist, except this time not with Marinette... this time with Adrien?!
At first glance, there might be very little tying Lila (cerise?... for the sake of this post she is Lila) and Adrien together. But delving further there are actually quite a lot of parallels.
Adrien and Lila are both social chameleons who had been showcased by Gabriel to function as a figurehead for his company. They are both desperate to make friends and social connections at school (albeit for different reasons), have a preoccupation with Maribug, and both come from very mysterious/shady backgrounds. The main difference, again, between these characters is that Adrien acts with empathy and altruism, and Lila acts with maleficence and self-interest.
The Adrien and Lila parallel has actually been referenced a few times in the show, but what I find most interesting is the scene at the end of the episode "Ladybug" where Adrien makes his first threat to Lila.
This episode follows a pattern of nearly every Lila episode, where Lila does something and Marinette is powerless to act. And while it is shown in season 5 that Marinette does in fact manage to take Lila down, we as the audience are well aware that she is far from gone and will be coming back with new vengeance.
The thing is, prior to that season 5 episode, Adrien's threat is the first thing to actually work. Adrien understands Lila, by nature of his life I am sure, he is surrounded by Lila's all day. While we know that Adrien chooses to see the best in people and may take time to identify threats to himself and those he loves, once he does, he is well adept at handling manipulators. After all, he'd hardly be able to survive in his own home if he couldn't.
In seasons 1-5 it became clear that Ladybug, moreso that Chat Noir, was able to defeat Hawkmoth, because she understood the way he thought and was able to plan accordingly. Already in the London special, Ladybug was having trouble facing the new Hawkmoth. Notably, Chat Noir was not there.
I just wonder what the potential dynamic will be between Chat Noir and the New Hawkmoth and if in fact, they will be positioned as foils...