I think the new forms will be getting new cries. The old cries for the genies were, as I imagine it, would be perfect for burly and macho genies. However, being more feline, avian, and draconian, I think the new cries would match them.
I think Kyurem's cries will be a mixture of both Zekrom/Reshiram and Kyurem.
I predict that all these new formes will get new cries.
The genies cries need to now fit their new formes.
The mascots need new cries blended from Kyurem and the respective mascot.
For White Kyurem, however, I want Reshiram's cry's purity to remain.
Reshiram had such an amazing cry, that I would hate for it to be smashed completely with another cry from Kyurem. I spjust want it to have a small tweak to fit Kyurem better.