Gabe Aul, of Microsoft's Windows Insiders program, has confirmed on Twitter that Windows 10 will drop support for Windows Media Center due to a decline in usage. This is not surprising news as Microsoft has been deprecating the Media Center application for a while now. In Windows 8.x, the application required both the “Pro” SKU of the operating system, and then users needed to install an optional add-on above and beyond that. The Media Center Pack cost $10 over the price of Windows 8.x Pro unless you claimed a free license in the promotional period surrounding Windows 8's launch.
While Media Center has been officially abandoned, its influence on the industry (and vice versa) is an interesting story. For a time, it looked like Microsoft had bigger plans that were killed by outside factors and other companies seem to be eying the money that Microsoft left on the table.