i too had heard something about the end of the dynasty  on eleventh generation. it was believed long before the royal massacre took place, that somehow it would end on eleventh generation king. i too had heard that. (gyanendra is eleventh generation too). i also have heard that the monarchy would be re-established within seven years of  the republican order and hridayendra would be the king.i dont believe on these predictions bhawisyawani..but  i definitely would like it..if this prediction turns out to be true.