KDR: I actually like that name. Wii eSports!, but they probably can't use that.
IDEAS:
All Games Online.
Tutorial System.
Tennis uses same mechanics of no running to the ball. Spend time to actually make aiming the ball even better.
Racket Ball: New game that will allow you to move your character with analog stick and hit ball. Fast paced 1 on 1, 1 player single, and 1 vs CPU
Volley Ball: Mechanics much like Tennis. Computer runs to ball, but can recognize, 3 types of hits: Bumps, Sets, and Spikes
Fishing: Online you can talk to other fisherman, and find out where the fish are biting that day, and what lures.
Golf: More courses
Boxing: Just fix the hell out of it. Its not so bad its unfixable, but more Stun attacks, and fix the dodging mechanic.
Bowling: Work on better spin controls, otherwise leave it alone. Though it could be cool to have an option for Bumpers, and design the pins into different shapes. 9 Ball anyone?
Pool: A good Pool game needs to be created.
Baseball: Actually have the fielding teams controllable somewhat. They can be automated for the most part...but more control is necessary somewhere in the game.
That is all I got. So Let's see it happen.