I don’t typically like to make short blog posts repeating what is being shouted everywhere else, but the Skype for Business release dates have been announced with specific dates and this is important!
Per the Office Blogs: http://blogs.office.com/2015/04/01/whats-new-in-skype-for-business-and-how-you-can-take-control-of-updates/ the specific dates mentioned are April 14th for the client update, which will be an update made available to Office 365 ProPlus, Office 365 Business Premium, and Office 2013 installs of the Lync 2013 clients. The server will be available for download on May 1st. Later on, but not date specific, we’ll see more and more enhancements roll out such as the beginnings of Enterprise Voice in Office365.
I know you’re as excited as I am for these major events!