No, I looked into it.

Minecraft by itself allows a lot of stuff for the players. In my opinion, it makes it kinda hard to sell "land" in Minecraft, since you can basically get it free on any server. The normal user will not appreciate the fact that it is located on a blockchain.

They didn't make clear if their project will be just a Minecraft server on which they will wrap around their stuff or a plugin that allows other servers to get in touch. If they just host a server themselves and don't allow others to make their own server with their plugin for the wallet and stuff, it is like a normal centralized server.

Maybe they also don't know some important details that are located in the EULA from Mojang Studios, which forbids some stuff ethverse wants to do. So if Microsoft wanted, they could shut down the project at any time. If there is a way to invest, you have to keep in mind the risk that the game itself is somewhat centralized and controlled, Minecraft is not open source.

I really hope somebody starts a project based on Minetest. I wanted to do that but it seems harder to implement blockchain features than Minecraft, where you can just use Java Libraries for blockchain that already exist.