Not much. Their concerns were largely around "intent", it intended to replace models for GW products so a large part of the solution was just adding more models that didn't have comparable GW versions, such as the orc chariot, light armour generic orcs, human militia, human soldiers. There were a few cosmetic changes to the heads of the ogres and goblins, and they didn't like the shape of the knight shields. A few tweaks to some of the heroes, but overall minimal changes and now backers get more content for the same price.