Perhaps, Skype may sound like a more popular name that Microsoft decides to rebrand Lync as Skype for Business. It was the same story for merging parts of Windows Live Messenger into Skype that is already popular and running among the consumers, knowing that Skype is now with Microsoft. The MSN services are still intact as of today though.
But how what about Lync when it comes to Skype for Business? Well, Microsoft has promised not to mess with Lync when it comes to this new service as if they're trying to retain every element of Lync in the new Skype for business users. Perhaps, the communication may be better with Skype for everyone including business users but when it comes to Lync in which various enterprises are still using, it seems that Skype for Business will have the combined elements of Skype and Lync together.