On the Microsoft Cluster blog is a list off all the best cluster sessions.
If you were not able to make it to TechEd 2013 this year, you can still watch the sessions and learn about the new enhancements coming. Here’s links to the recorded cluster sessions at TechEd 2013:
Continuous Availability: Deploying and Managing Clusters Using Windows Server 2012 R2
Failover Cluster Networking Essentials
Upgrading Your Private Cloud with Windows Server 2012 R2
Application Availability Strategies for the Private Cloud
Storage and Availability Improvements in Windows Server 2012 R2
Understanding the Hyper-V over SMB Scenario, Configurations, and End-to-End Performance