There were many papers at SAS Global Forum 2013 on the upcoming 9.4 version of SAS. You can find many of them here. I recently saw a blog post from Robby Powell with a good summary of what to expect from 9.4. It's worth a look to see what will be available next month when 9.4 is released.
I already know of one major site in the UK that is planning to quickly upgrade to 9.4 to get the significant benefits of its clustered metadata servers (providing much-increased resilience). What are your plans?