What if Halo 5, Zelda and Uncharted 4 all bomb?

[MoHasanie]

Zelda sales will be lower than what many expect because the Wii U has a small install base.
Halo 5 will sell less than 10m because the X1 install base isn't that large and I feel like the series has peaked.
Uncharted 4 will sell more than any other Uncharted game.