It is no surprise that a sequel to Wii Sports is on the way. The beach-focused package called Wii Sports Resort is sure to be a bestseller when it is released in Spring 2009. The game will ship with an updated controller called the Wii MotionPlus. Wiifanboy describes a few of the beach games in the package.
The theme here is beach games -- perfect for people like us who don't particularly enjoy going outside, let alone baring our flesh. On stage at Nintendo's E3 press conference, we were treated to demos of games such as Disc Dog (lobbing a frisbee for your dog), Jet Ski (self-explanatory), and a sword-jousting minigame in which players attempt to knock each other off of a platform.
Here's a presentation of Wii Sports Resort and the Wii MotionPlus from the E3 conference. There's a few more screenshots of the game here on Wiifanboy.