Desert flood plains

Seeing as we know that the desert and savannah biomes are going to be updated, I propose that rivers in the desert biome be a variation or a sub biome called flood plains. The idea is to have dirt and grass blocks around it where the player can do some farming. It would make for an easier survival in the desert and make building a lot easier as many builders have to build this type of biome by hand. The inspiration for this Is the river Nile in Egypt and the ancient Egyptian civilisation whose beating heart was the Nile.

Maybe we could have unique villages based around rivers, but that is for a different topic.