Windows 10 Beta on Xbox One Time Frame

An Xbox One Beta of Windows 10 will be coming after the operating system launches on PC. "It will be post-summer," tweets Phil Spencer, head of Microsoft's Xbox Division.
We already know that Windows 10 will feature many Xbox apps and services, such as native support for friends lists, messaging, and activity feed, Xbox Live support, Game Streaming, Game DVR. On the Xbox One, DirectX 12, and Windows 10 app support will be coming, as well as the possibility of "universal" games that run both on Windows PC and Xbox One hardware.

What else could be shared between the two? Do you hope to see a dashboard overhaul on the Xbox, or mostly a behind the scenes update?

Source: Neowin