Consider that the Bible speaks about the ark having been stolen. It is doubtful that it was carried away by the Levites.... into the enemy's camp. For a while, even David got away with transporting it back on a cart driven by animals instead of being carried on staves by men.
When the glory of the LORD left the temple, I have my doubts concerning that the ark, which was built by man's devices with natural resource from the earth, was anything more than symbolic of things to come. In side it was the law and object-witnesses of God's provisions and miracles and was a temporal reminder of God's covanant with His chosen people and their covanant with him and the promise of his provision and protection.
If I understand correctly in reading Revelations, there is a temple in Heaven and there is the Ark and the Mercy Seat: Who made these and of what are they made..... only God knows...... but I suspect it was God. I don't know the depth of meaning that such furnishings have....perhaps a Bible scholar might know?
Nevertheless, the uncovering or unveiling of the Ark, which was thought for a long time to have been lost, would be a remarkable discovery, and a proper prelude to the building of the temple and its refubishing in Jerusalem.
This is an interesting development.