I liked Twintelle but the fact her ARMS are on her hair made her not that representative of the franchise, I feel that hurt her chances. Maybe as a second rep if ARMS 2 blows up? I'll like that.
Rodin with a similar moveset like Bayo would be cool, he is awesome.
I think Marina would be great but if she makes it then you'll need Pearl too. Also I would expect octolings to get in first and I hope the default the black skin.
Elma is awesome but if you have not played Xenoblade X you wouldn't realize she has a few twist of her own that makes her don't fit what the thread wants.
Doc Louis would be a... bigger, stronger, slower Mac? I can see it, give him an attack that makes hiw throw chocolate around, lol. Honestly I think Sandman would be cool too, but the more I think about the comedy potential of Doc Louis the more I want him.
Shinobu over Travis would be cool, but I see that hard to happen if Travis is not already in.
Garret as the third character on the same game with a franchise with several games that don't have representation would trigger another thread war, lol. Sephiroth felt like a miracle.
Ooof, I don't know man, I feel that Nintendo may feel they don't have a quota to fill, or maybe they think that adding the inkling/villager black skins are good enough. If you look at Japanese media in general Darker Skin is usually just not used for protagonists, just looking at your list is sad. It does make sense because, well, they just don't see people of darker skiin over there as much. The 3 times I traveled to Japan I had people staring at me, even kids pointing at me because I'm brown. They are nice enough but it's just exotic to them. And that is not taking into account the inherent xenophobia that comes by default.
The fact that even with Western 3rd Parties its hard to come up with an iconic black character it's tellng of the larger issue on the industry.
If anything I'm still angry Daisy is white in smash.
Sigh...
But back on topic, I guess Twintelle was the big chance if they wanted to get a genuine Black character in, instead we got Min Min that is cool with me since she is Chinese.
So my hope is on the octolings, Splatoon is big enough to get more than one rep. I don't think it's happening on Ultimate, but I 100% expect Sakurai to stop at this round of DLC and Nintendo to decide they want to make more and pass the development to someone else to keep adding characters to this game.