This weekend the people of Mojang and Humble Bundle will come together to create a multiplatform game that will be based on the theme that we want as I have already said.
Currently in the mojang page There is a survey in which we can vote on the genre and theme of the game, via Twitter you can also collaborate with the development of the game.
There is also the possibility of donating to the project, if we donate to the project we will have the game when it is finished and chances of having more prizes and to achieve donation goals there will be funny incentives.
Without liking games I find the project quite interesting.
Source: Xenode Systems Blog