New Nintendo IP in the last decade

Nintendo Gamecube
Luigi's Mansion
Pikmin
Eternal Darkness: Sanity's Requiem
GiFTPiA
Donkey Konga
Battalion Wars
Geist
Chibi-Robo!
Odama

Nintendo Wii
Art Style
Wii Sports
Excite Truck
Wii Play
Endless Ocean
Wii Fit
Wii Music
Disaster: Day of Crisis
Captain Rainbow
Common sense of people power TV
Tact of Magic
FlingSmash
Dynamic Slash
And-Kensaku
Pandora's Tower
Kiki Trick
Xenoblade Chronicles
The Last Story

Wii-Ware
Bonsai Barber
Rock N’ Roll Climber
PictureBook Games: Pop-Up Pursuit
You, Me and the Cubes
Eco Shooter: Plant 530
Snowpack Park
ThruSpace
Line Attack Heroes
Fluidity

Wii-U
P-100
Panorama View
Nintendo Land
X

Game Boy Advance
Golden Sun
Magical Vacation
Napoleon
Kuririn
Horse Racing Creating Derby
Stafy
Tomato Adventure
WarioWare, Inc.: Mega Microgame$
Drill Dozer
Rhythm Tengoku
bit Generations

Nintendo DS
Polarium
Nintendogs
Jump Super Stars
Electroplankton
Big Brain Academy
Brain Age
Clubhouse Games
Magnetica
Elite Beat Agents
Hotel Dusk: Room 215
Trace Memory
Master of Illusion
Slide Adventure MAGKID
Soma Bringer
Jam with the Band
Fossil Fighters
Style Savvy
Glory of Heracles
Friend Collection
Walk with me! Do you know your walking routine?
Cooking Guide: Can't Decide What To Eat?

Dsi
Aura Aura Climber
Art Academy
Kappa Trail
Pinball Pulse: The Ancient Beckons

Nintendo 3ds
Steel Diver

3DS Ware
Freakyforms: Your Creations, Alive!
Pushmo
Sakura Samurai: Art of the Sword
Dillon's Rolling Western
Ketzal's Corridors

Luigi's Mansion, Excite Truck, WarioWare, and Donkey Konga are not new IP's. They're all existing IPs (Luigi, Excite Bike, Wario, and Donkey Kong; respectively) repackaged in new forms.