>>15064841It's the same in both games. After you save the legendary, he uses the energy left in the machine to make the protags immortal so, in his view, they'll live long enough to see the world destroy itself as he predicted.
ZX/ZY will be set 20 years in the future where Serena has gone down the same route as Lysandre and is trying to destroy the world with the other legendary. 
