The Whats new in Rational team Concert in the CCM track at Innovate India was choc-a-bloc and saw many interesting queries. The session touched upon the new enhancements in RTC 3.0, most of which are aligned with the CLM release. Jazz.net is the best resource to read up on the new features. A presentation is avaliable on https://jazz.net/library/presentation/645
In a nutshell, RTC has enhancements in work item management, traditional + agile planning, out of the box reporting, build management. etc. https://jazz.net/library/article/590 is a good read on RTC 3.0's planning capabilities.