Theoretically there should be enough information stored in the world saved data for Vanilla chests to be reconstructed. It may require additional updating to specify the original block if that information isn't already stored (trapped, chest, barrel, etc).

Whether or not this would be able to handle entities, I'm not too certain. It could potentially register an entity type that is identical to the Lootr minecart but merely functions as a vanilla chest cart with loot.

Obviously, Lootr would need to be removed and Uninstallr added before restarting the server.

Related problems:

• Moving chests should update their position so as to restore them in their rightful place. Workaround: if there isn't a vanilla chest at that location (with Forge mapping handling), do nothing.

Related issue: #33