Just got the email from Cake - here's the gist of it:
SONAR X2a coming soon We are pleased to announce that the SONAR X2a update is almost ready for release and will be available later this month. The SONAR X2a update is free to all registered SONAR X2 users and introduces many new exciting features including:
Official Windows 8 support as well as Touch support for Intel-Inspired Ultrabooks and other touch-enabled devices Over 50 UI enhancements and improvements Accessibility support Enhanced Play List experience Enhancements and fixes And more
Stay tuned for more information on availability!