The Avatars from Xbox 360 have barely been visible on Xbox One, but that might be about to change. Microsoft is hiring software engineers dedicated to avatar development. In one of the ads, it says:
"At Xbox, we're looking for an experienced graphics engineer that will work with us to grow the avatar platform across all of our platforms, leveraging the power of Xbox One, the far reach of Windows, and the intimacy of touch on mobile devices. You will make significant contributions to the rendering tech for the Avatar engine, working to ensure Avatars are not only gorgeous, but highly performant across a wide scale of devices."
Big words, but it doesn't end there. In another ad they also write:
"As we cross the threshold to a unified operating system and product experience across Microsoft, it is time to for Xbox avatars to also advance to the next level. Come with us, as we take Xbox avatars on their biggest adventure yet with higher fidelity and a bigger stage in new Xbox experiences."
We don't know anything more than this, but it seems like there will be a lot more Avatars and stuff related to them in the near future across all platforms supported by Microsoft.