I think what he meant by economy change probably has more to do with recipes for crafting such as the recently changed hardened steel. You can count black ice building pieces will have a drastic change from what they are now.
The recipes have a direct influence on the time to recover from a raid. If you don’t have a legendary weapon, you can still fight, if you have to cover the whole map gathering materials to repair your black ice walls as opposed to how easy it is to fix or expand black ice fortress withou ever leaving the north now can have a highter impact on your gameplay.