Perhaps we won't see many more envoys making the long trip from Peking to Delhi, given this move by China:
Apparently in response to recent Indian tests of longer range missiles, China has moved over a dozen of its DF-21 IRBMs to Yunnan Province (which borders Myanmar, and puts most of eastern and northern India within range). The DF-21 has a range of 1800 kilometers and a 300 kiloton warhead. China has over fifty of them. Previously, most DF-21s were aimed at Russia and Japan.
Well now, even the most skilled Chinese diplomat would have trouble explaining that away. So why even pretend to court India?
Note too, that China points nuclear missiles at Japan, which has no nuclear weapons.
As Chinese power grows, the Chinese will prompt their neighbors to arm up in response. How much net power growth China is actually getting for their effort is debatable, I should think.