Wii U basically averages two "big" games a year.

[Soundwave]

I'd say

Splatoon
Mario Maker

Are major titles this year

Star Fox
Xenoblade
Yoshi

Are your support titles.

Mario Party, Kirby, Fatal Frame and the like are more minor releases.

The fall seasons for the Wii U are OK, but the Jan-July period has been pretty brutal every year.