5 month drought...for you.
You're dismissing releases just because you don't like them. Stop it. If you're going to make grandiose statements in regards to the state of releases, you can't just ignore ones that don't fit your own personal opinions.
Let's do a rundown of Nintendo published releases since January last year, shall we? We'll go by Europe and retail only
February: Donkey Kong Country Tropical Freeze
May: Mario Kart 8
July: Wii Sports Club
September: Hyrule Warriors
October: Bayonetta 2
November: Super Smash Bros.
January: Captain Toad Treasure Trackers
March: Mario Party 10
March: Mario VS Donkey Kong Tipping Stars (Retail presence different to the download cards some stores sell, but you can not count it if you wish)
May: Kirby & The Rainbow Paintbrush
May: Splatoon
So, where's this 5 month drought?