Something tells me this would lead to some kind of friction with Nintendo.

They have plans for Starfox, even with his problematic powers?

MCU Cosmic

We're getting pretty desperate for news when a story like this pops up. Yeah, Marvel Studios might have an interest bringing Starfox to live-action but you can say that about practically EVERY other superhero Marvel own the rights to. There is nothing here to indicate when or where or how. It's a fairly obscure story with no real evidence to back it up.

Although, Starfox is connected to Thanos & The Eternals and seems obvious at some point Marvel will adapt him (or her, you never know with casting), I see the character on the long list of characters that are waiting for their turn for introduction. It's been 6 years since Nova Corps got introduced in GotG, we're still waiting for Nova. Who knows how long we'll be waiting to see Warlock. If that character is in GotGv3 it could be 6 years since GotGv2. Moondragon has yet to appear despite her connection to Drax, who was introduced 6 years ago. If Starfox doesn't show up in The Eternals then it could be 5 to 6 years from now before we ever see him in a possible sequel.

So yeah, writing about a possible character showing up seems like a safe story to put out when there is hardly any news to share. And no one will call you out because it will be YEARS before it can proven right or wrong. To me, this is pretty clear example of a non-story.

I'm not gonna lie, I thought Kumail Nanjiani was gonna be Starfox. He'd be dope in that role

Honestly, I feel no need for Starf*cker the SpaceRapist. He does not really fit in today's world, unless they were to bring him in as a (maybe not villain, but a) less than good side character. And there's no need for him to be Thanos' brother or an Avenger. Thanos doesn't need a brother (much less a normal human looking one) and the Avengers don't need him either. Maybe SheHulk can try and defend him as some spacefaring seductor. Then he tries to seduce her and she beats his ass down, physically, and then legally. Could be used as a laugh, but not real weight there for that guy

A white male with red hair? Yeah Marvel/Disney will definitely be changing that.