Dang, Im a bit late to the discussion but when I think of platformers I think mostly of Metroid, Megaman X, and the new Super Meat Boy.
The animations you are lacking that would round the project out would be:
Hanging From Platform
Hanging from Wall (Megaman X/Meat Boy Wall jumping)
Hanging and moving across rope
Climbing a ladder
Also I'd enjoy:
Spin Attack (Think Link's Spin Attack in Zelda)
Some form of power up for leveling or gear (Think Dragonball Z)
A Roll to get out of harms way. (Think Super Smash Brothers)
A Beast Mode (Either a hulk out or even star power like mario)
The last 4 are just part of a personal wish list, but I feel hanging and climbing to be a pretty big part of platformers.