Oh wow, a sequel to Niche would be so cool! Let me think—maybe more types of birds would be cool! That can fly, don’t hunt babies, and drop less food?
oh wait—what about neutral or enemy tribes of wanderers! Kind of like Adam’s family but stick together more. And if you befriend the tribe enough you can merge tribes, or if you attack them or steal their resources, members or territory they become hostile so you have to be careful. Maybe different tribes will act more or less hostile regardless. There could even be groups of rogue males…actually no that would suck haha
last idea, to expand what someone said earlier: nocturnal nichelings and predators. Idk how the mechanics would play out, I just think it would be cool to play at night