Part of the appeal of Mario Kart is how its randomness favors newer players. In particular, this includes the items that cannot be countered, like the blue shell.
I'd say they should offer 2 main play modes, one being more noob friendly, while the other minimizes the frustrating luck factor. I doubt they'll do this, though.
They need to improve battle mode. The maps are way too damn big, the game often played with only 4 players. It should be balanced around this.
Lastly, the online multiplayer. Include 4 player split screen online, and have it run smoothly (60fps), along with some matchmaking that takes split screen into account. Wii console vs console (e.g. 4v4) would be awesome.







