Desde el blog de Office (http://blogs.office.com/2015/04/01/whats-new-in-skype-for-business-and-how-you-can-take-control-of-updates/) han publicado un vídeo en donde nos muestran las fechas de salida de Skype For Business Server!! (imagen capturada del vídeo)
The good news is that regardless of whether you are using Lync Online or Lync Server, you have the ability to control when the updated experience is rolled out to your users. There are two ways to do this. First, Office 365 ProPlus and Office 2013 allow you to control when monthly updates are delivered to your users. Second, both the online service and the server now have policy settings to control the user experience using PowerShell. While the settings are slightly different for online and server customers, both are straightforward, and allow you to manage the UI centrally.
Ahora toca esperar un poco más, ya no falta nada!!!