Killmonger's suit design was a bit disappointing since I was hoping for something a little more distinct - maybe more of a reddish hue - but it still makes sense in context, and for what it's worth it is a badass design in of itself.
That said, the conflicting political ideologies are what I find most compelling here, and I think I have an idea for Killmonger's based on a couple of his lines in the trailers we've seen so far. (Granted, this is just my hypothesizing.) More than just being jaded with T'Challa and the royal family given his exile, I think Killmonger's end goal is to actually take Wakanda's resources and - with himself at the helm - wage a war against a global superpower, resetting the world's power structure ("The world's gonna start over; I'mma burn it all!") such that Wakanda becomes the domineering global superpower he thinks it should be. It might even reach beyond that; the new line of dialogue in the international trailer is "This time, we're gonna be on top," which makes me think he might be referring to black people in general by "we", and thus in a way would put him somewhat in the vein of militant black supremacism.
It would make it interesting to see a movie called Black Panther - what with all of that term's political connotations (warranted or not, mostly the latter) - make one of the primary antagonists be a black supremacist-type figure. The MCU's Killmonger's been slated to be an antagonist with an ideology that is supposed to in some ways make the audience actually side with him, or at least seriously question whatever it is T'Challa is trying to work towards, and I think such a worldview as what I'm proposing would be quite compelling if executed properly. You have a guy who was presumably exiled from the country due to the actions of a Dutch/Boer dude who himself thinks that Wakanda exists in hypocrisy - presumably the idea of questioning why Wakanda doesn't share its resources with the rest of the world, or at least Africa - and so if Killmonger actually turns out to have some personal relationship with Klaue, he might've picked up on this idea himself, viewed it through his experience as a black man living in a Western society given all of its history, and come to think Yeah, why doesn't Wakanda help out more, especially other black people?, and from that point on he'll go about trying to write the world as he sees fit. (Which I do think entails that he ultimately turns on Klaue.) If he goes this route, I doubt he'll be giving any racial overtures; it wouldn't be so much **** white people as it would be **** the U.S./Western Europe.
I'm probably wrong on some level - and even though I haven't read the comics, I feel confident in saying that this probably wasn't Killmonger's original ideology - but it's at least one angle that I think could fit well into what's supposed to be a big geopolitical thriller. Plus, it could on a meta-level help divorce Black Panther from incorrect notions of black supremacy. I don't know, what do you think?