We've already gotten a first-hand look at what Windows 10 brings to the table for the technically savvy—multiple desktops, an improved command line, and so forth. But that's only one side of the operating system.
According to The Verge, Microsoft plans to unveil Windows 10's "consumer features" at an event in late January. Sources wise to Microsoft's plans tell the site that those features will debut alongside a Consumer Preview build of the operating system, which will presumably allow users to go hands-on with the new functionality.
The Verge doesn't get into much more detail. If I had to guess, though, I'd say the consumer event will be all about Windows 10's Modern UI interface for tablets and convertibles. The current Technical Preview does let users enable the touch interface, but Microsoft warned last month that parts of it are "rough and unfinished."