Editing and pricing Windows Server 2012

http://www.microsoft.com/en-us/server-cloud/windows-server/2012-editions.aspx

And also, in Windows_Server_2012_Essentials_FAQ.pdf, Microsoft confirmed that Windows Home Server will no longer be released. For replacement suggest using Windows Server 2012 Essentials.
The latest version, Windows Home Server 2011 (Vail), was released in March 2011.

Upd: WS2012_Licensing-Pricing_Datasheet.pdf