Microsoft has made available the SQL Server 2012 System Views Maps for download

The Microsoft SQL Server 2012 System Views Map shows the key system views included in Microsoft SQL Server 2012, and the relationships between them. The map is similar to the prior versions of Microsoft SQL Server System Views Maps and includes updates for the Microsoft SQL Server 2012. Note that not all possible relationships are shown.

You can download it in either xps or pdf format, the download can be found here:

Here is just a small part of the poster, this is the AlwaysOn part