This visit to a very contentious border region is significant. Should this visit comes to pass, then will be like India rubbing China's nose into the sand. At the time, China withdrew form the region and peacefully return the prisoners of war. This was the goodwill extended to India.
The Dalai Lama has been a pawn for the balance of power between the wets and China. If India starts to egg the Tibetans on, China may not be so kind this time around. Oh, well, India messes up and have to send the Tibetans packing, then I guess there's nothing very much CTA can do then.