Microsoft working on a title dedicated to one of the most popular video games of all time
What could be "one of the most popular video games of all time", involving the creativity of the community? As you have probably guessed is Minecraft. At this point it may be a real sequel or a spin-off? It is clear that as long as Microsoft does not announce officially the title, everything remains unclear, but it is interesting to note that, already in November, the Microsoft Vice President Jeff Teper had spoken of Minecraft as an "educational" game, so it's not unlikely that the definition used by the Colossus of Redmond in the ad can actually invoke a sequel to the latter.
 There is also talk of internal teams and external partners, with the possibility that Mojang could develop the main game, while other studies would work on porting to other platforms.
It is likely that today we can know something more during the Microsoft event dedicated to Windows 10.