1, China will be able to receive those refugees, if that there are Tibetans willing to stay in India, we do not disagree. If India has a "human rights" concerns, to establish an international observer mission to Tibet, including India's representative.
2, it is India's internal affairs, just to judge India's strategic needs, China can not do anything about this.
3, certainly has changed, at least there is a large change in confidence between the parties. But with a realistic attitude, China and India still have a border problem, which is also tricky, so all the gains bottom line is that an increased mutual trust, both the Government and people. A better attitude to solve the border issue, what is better? At least when we want to solve the border issue, no more enemies in the psychological attitude, but only in some border territory issues, which is at least beneficial.
Other things, can only say that step by step, at least not to provoke China, Pakistan and India fight, I think China has a good attitude, the future will not change.