Yes, this might be the last of the Dalai Lama lines.
According to him, that doesn't mean of course that he will no
longer return.
But even if he returns and is recognised as the previous dalai
lama, he will not be reinstated into the Dalai Lama role again
(unless the role is still necessary, which will depend on
circumstance).
If I remembered correctly, Dalai Lama said he will be return
(reborn) but may not be in Tibet. He said it depends on the
situations.
Tibet to be independent as a statehood is far from possible.
Just hope that they will treat the Tibetans fairly and not 2nd
class citizens but we can't expect much from a
communist country.