Didn't Swen say in that most recent interview that although Larian would provide modding support for BG3, it would be very difficult to mod the game "bacause of how big and complex it was"? I am very concerned that good, critical mods for this game are going to be rare, if available at all.
Not sure what you mean by 'critical' but the relevance of the size and complexity of the game would depend on what the mod was trying to achieve. There are e.g. already mods which add spells and feats and which make rules closer to 5E.
