Wii:

  • Fatal Frame IV
  • Wii Chess
  • Disaster: Day of Crisis (delayed)
  • Mario Super Sluggers
  • Wii Music
  • Kirby
  • Animal Crossing Wii

DS:

  • Glory of Hercules
  • Pokémon Platinum
  • Band Brothers DX
  • DS Air
  • Hoshi no Kirby: Ultra Super Deluxe
  • Fire Emblem DS
  • Wander Donkey

WiiWare:

  • Dr. Mario Online Rx
  • Everyone’s Pokémon Ranch
  • Magnetica Twist
  • Yakuman Wii

Only first party Nintendo games are listed, this does not include all the 3rd-party games for 2008.

This list contains both releases for the US and Japan, so some of these may slip into 2009—I could see Animal Crossing Wii in Japan launch this year, but maybe not for America until early 2009, so take this “Release Schedule” as a tentative list.

Link