When you play Minecraft there are only 2 types of villages, Normal and desert. I think there should be more types. Pictures coming soon!
Nether Villages - Nether villages as you probably already can tell, are in the nether. They are made of Nether brick and inhabited by Zombie Pigmen.
End Villages - End villages are located in the End on different islands (Not the main island). They are made out of Endstone and inhabited by Endermen.
Cave Villages - Cave villages spawn underground (Y: 40 to 0) and are made out of stone and various ores. They are inhabited by Villages.
Sky Villages - Sky villages spawn in the sky (Y: 120 and higher) on white wool blocks. They are made out of quarts blocks and inhabited by villages.
When I think of more I'll add them. If you need more info or have a suggestion, feel free to say in the comments!
Cave Villages- Cave villages spawn underground (Y: 40 to 0) and are made out of stone and various ores. They are inhabited by Villages. Sky Villages - Sky villages spawn in the sky (Y: 70 and higher) on white wool blocks. They are made out of quarts blocks and inhabited by villages.
Y=70 is too low for the "Sky" Village. The sea level is Y=64.
And, Cave Villages on Lava Level is TERRIBLE. The poor Villagers... Burned to a crisp as soon as it's generated...
Also, what buildings are you going to add? I don't think wheat farms are fitting in the Nether, considering there's no water. But, you shouldn't make a Nether Wart farm as a replacement, because they are found exclusively in Nether Fortresses.
The concept of new villages themselves is not inherently bad of an idea, but the examples you provided are a tad far-fetched and oftentimes impractical. 3/10
Nether Villages - Nether villages as you probably already can tell, are in the nether. They are made of Nether brick and inhabited by Zombie Pigmen.
End Villages - End villages are located in the End on different islands (Not the main island). They are made out of Endstone and inhabited by Endermen.
Cave Villages - Cave villages spawn underground (Y: 40 to 0) and are made out of stone and various ores. They are inhabited by Villages.
Sky Villages - Sky villages spawn in the sky (Y: 120 and higher) on white wool blocks. They are made out of quarts blocks and inhabited by villages.
When I think of more I'll add them. If you need more info or have a suggestion, feel free to say in the comments!
Y=70 is too low for the "Sky" Village. The sea level is Y=64.
And, Cave Villages on Lava Level is TERRIBLE. The poor Villagers... Burned to a crisp as soon as it's generated...
Also, what buildings are you going to add? I don't think wheat farms are fitting in the Nether, considering there's no water. But, you shouldn't make a Nether Wart farm as a replacement, because they are found exclusively in Nether Fortresses.