Jamieson, Fausset and Brown on Ezekiel 41:10

10. the chambers--that is, of the priests in the court: between these and the side chambers was the wideness, &c. While long details are given as to the chambers, &c., no mention is made of the ark of the covenant. Fairbairn thus interprets this: In future there was to be a perfect conformity to the divine idea, such as there had not been before. The dwellings of His people should all become true sanctuaries of piety. Jehovah Himself, in the full display of the divine Shekinah, shall come in the room of the ark of the covenant (Jr 3:16, 17). The interior of the temple stands empty, waiting for His entrance to fill it with His glory (Eze 43:1-12). It is the same temple, but the courts of it have become different to accommodate a more numerous people. The entire compass of the temple mount has become a holy of holies (Eze 43:12).