I wish there was an edition of Survivor with mixed tribe themes. Like Heroes vs Villains vs Girls vs Boys.
It would also be nice if there was an edition using the idea of Paulis Garcia, a Youtuber I know, with a tribe with 6 newbies, another with 6 former players, and one with 6 finalists.
One edition with a tribe of famous players even eliminated in the pre-merge, another with juries, another with finalists, and another with winners.
A battle of the world. A tribe with players from America, another with Asiatics, another with Europeans, another with Africans, and another with players from Oceania. A battle of 5 tribes representing a place in the world.
Chris’s Minecraft Survivor ideas are also good. As Extroverts vs Introverts.