The Sizing Tool for SCSM has been updated for 2012! This tool can be used to size your Service Manager deployment based on how much data you plan to manage. It specifies recommended HW and deployment topologies based on your inputs.
It is included in the Job Aids download package.
Up next for update:
* Data Model Visio diagram
* DW data model diagram
* Architecture diagram
For the most part those have not changed a lot from 2010 to 2012 so you can still use the 2010 versions for 2012 for now.