Far and Wide update

I would like a super rare biome where the red sand desert has an extremely low chance to spawn a giant canyon like the grand canyon and an even lower chance for a village to spawn in the canyon. There would be cave art adding cool things for decoration and other stuff. And the canyon is huge! And the far part would be a map update where if you go far enough out into the world you would get into the plaguelands (name could change) and it has rotten wood and other creepy things, it would be mostly devoid of life and it would be a really tough challenge to survive in the plague lands.