Nintendo is expanding its Wii U capabilities along with its library of games.

Wii Fit U Communities: New features coming to Wii Fit U include letting players create user communities on Miiverse from within the game. Community members can discuss exercises, BMI or weight changes and other health topics with other players as a way to encourage one another to reach their fitness goals. Similar functionality for other games is also planned.
Pikmin 3 Photos: The upcoming Pikmin 3 game includes a feature that lets players use the Wii U GamePad as a camera to share the same perspective as Pikmin and take close-up pictures of landscapes and creatures in the game and share them in Miiverse.
The Party Continues: A new installment in the Wii Party franchise is planned to launch this summer. The game features various play styles, including one that lets both players compete head-to-head using just the GamePad.
RPG Mashup: Nintendo has begun many collaborations with outside development partners to bring the best franchises and experiences to Wii U. In one such partnership, Nintendo and Atlus are working on a collaboration that features the Fire Emblem and Shin Megami Tensei franchises. A video trailer for the game was shown in the Nintendo Direct.
A New Game from Monolith Soft: Tetsuya Takahashi and the team at Monolith Soft that worked on Xenoblade for Wii are working on a new game. A video trailer for the game was shown in the Nintendo Direct.
More on the Way: Iwata shared a new trailer for The Wonderful 101. That game and GAME & WARIO are scheduled to launch in the first half of 2013. Iwata also showed a new video for Bayonetta 2. That game and the new Super Smash Bros.installment are still on the way, but will need more development time before details can be revealed.