Natives seem like a solid choice but maybe with them going up against the conquistadors in the South Americas..it could be cool to see Tarantino go Last of The Mohicans or 1492 with his final revisionist flick..I like the idea of another WWII focusing those soliders but it's a genre we've seen him tackle.. he needs to make a swashbuckling native revenge film or a straight up Japanese samurai flick (combing factual events).. his 30s era gangster flick is still a strong contender considering his love for Boardwalk Empire and Once Upon A Time In America..even a Spanish Inquisition movie could be interesting Captain Alatriste is undiscovered gem..
Captain Alatriste Trailerhttps://www.youtube.com/watch?v=vAcrIr84OdQ
St. Valentine's Day Masacre Trailer (Gangster Flick)https://www.youtube.com/watch?v=DAiWLy6lxVU
Last of The Mohicans Trailerhttps://www.youtube.com/watch?v=aMZtQhhS14w
Akira Kurosawa's Ran Trailerhttps://www.youtube.com/watch?v=AbbfDntoRRk