Some of the VP tiles changed too.

1) Culture 1 changed from Paper & Stone to Paper & Wool
2) Military 3 changed from Stone & Weapons & Food to Weapons & Food
3) Politics 4 changed from Weapons & Cloth to Weapons & Cloth & Food

I wouldn't suggest taking out the Alchemist Cave. It solves some of the endgame gridlock, especially with 4 players.

I would never, ever, play Neuland with other than 3 players.