>>102775043Finn isn't the only human anymore. The whole lot of them came to Ooo in the end. Honestly I like the idea of Sweet P taking on the role of Hero of Ooo after fin, and then passing the mantle to Shermy (especially considering they ride him, meaning they gotta know each other). Honestly I like Finn and Huntress Wizard together as they're both adventurers, and alphas, but honestly I think Finn is already a father in a way. People tend to take it as a joke, but if you look at the way Martin treats Finn (Ignoring him unless he needs something from him), that's exactly how Finn treats NEPTR, who sees Finn (his creator) as his father. I feel like, even if Finn and HW end up together, or even have kids, that he needs to redeem himself with NEPTR before any of that (though I doubt the comics will allow it). As far as humans, I feel like they'd just interbreed with the colorful people of Ooo. The blue and pink and green people in the series who aren't human seem to be human as far as what they're able to do, so honestly I immagine humans just interbreed with them until they're indistinguishable, and tan/brown just become another color people can be. Also I don't think Huntress wizard is made of plants. Her hair may be but I feel like she was just a green person before, and got the leaf hair from her Magicks. Even so, if she is a plant person than that racealready exists (see the colorful people for intermixing).
But if I'm being 100% real, I think Finn's ending, and how he dies, should remain a mystery. Like all good legends, how he ended up is up to you. It allows for his mythos to grow. All the implied adventures we don't see in the episodes, all the comics that are "non cannon", they all build to this mythos. Like I've said before, this show seemed to, near the end, go too deep into things that where better left unanswered, like Jake's magical powers. He could have had them just cause, but they decided to make him half alien.