Biome and dimension ideas

I like Minecraft and all but some ideas for the gameplay. What if you added some new biomes or dimensions for example, you could add a biome that could be a city with city villagers. Second, what if there was a dimension that could let you go to the past versions and you could choose on the list after you go through the portal like the caves and cliffs update. Next, what if there was a neighborhood biome like a suburban town with a few houses or so, and there were crossing guards to cross a street to a house. And lastly, you could bring back the most popular dimension from April fools, I mean there would be a portal and you could go to an April fools dimensions. That’s all the ideas you could use for some biomes and dimensions