* The numbers are on roughly a quarter of the tiles. There is little to no control over when the wheel "spins".
Hence the name of the expansion?
* Control could be added by having each player have an additional tile in hand
I do have some friends that play with a hand of 3 tiles, but I don't. When we play together, I make them play by the official rules. =b I could see how that'd be quite an advantage though.
* The pig always moves a fixed number of spaces throughout the game.
I agree, and I don't really like that fact. What about when drawing a numbered wheel tile, that if you give up the chance to 'move the wood', then you may move the pig an extra space (possibly two?) around the wheel?
* The pig also only ever moves in one direction. Something could be added that makes the pig change direction.
That could be interesting, but I'm willing to bet that the pig will never land on the section of the wheel that makes everyone remove a follower. =b
Here's another idea to add to the list: A player may place their pig from their supply to a position on the wheel of fate instead of deploying a follower. That section of the wheel can be scored and in the future when that player draws a numbered wheel tile, then he may choose to move the pink pig or his own pig around the wheel. And of course, if a player places a pig on the wheel, then the pig remains on the wheel for the rest of the game.