At this year's E3, they expanded on what they will be doing in the near future. During a press conference, Nintendo announced various things such as the release of Smash Bros. Brawl later this year and even a physical fitness game designed to help players stay in shape.
Most interesting, however, was their statements surrounding WiiWare:
The WiiWare game development technology will officially begin service next year, according to Nintendo. The Nintendo press release promotes WiiWare as a service which "provides game creators a simple method by which they can get their games to the public."
Depending on how they handle it, they might get a plethora of developers working to craft games for their console. Doing such would be a benefit to Nintendo as well as players, since getting past the licensing fees has been a bone of contention for many game developers for a long time.
Many other games and products were announced, such as the re-introduction of the Zapper for the Wii, the light gun that the NES is remembered often for.