Microsoft has announced that the next version of Lync will be "Skype for Business". In the first half of 2015, the next version of Lync will become Skype for Business with a new client experience, new server release, and updates to the service
in Office 365.
http://blogs.skype.com/2014/11/11/introducing-skype-for-business/
What is known about support for UCMA and other Lync SDKs in the new version that is expected to be released in less than six months?
UCFin