Even Wyatt's Ark of the Covenant claim includes that it won't be publicly revealed until some time in the near future. Therefore, we can't know.
But that does lead to an intriguing idea. There is no way that animal sacrifices can be restored without the authentic mercy seat.
With Jesus living In us (Revelation 3:20 Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me), the sacrafice of Jesus / Messiah is a permanent sacrafice on earth as we confess our sins and intercession is made to the Father in Heaven by our high priest Jesus.
I know it sounds a little strange, but there are the symbols and then the ultimate spiritual reality.
IMHO, note IMHO, the central body cavity contains many of the tabernacle fittings:
Lavers for washing (reins / kidneys)
Three or more coverings (?) skin or hide outer covering, inner viseral covering of the organs, pericardium sac around the heart (double walled).
The liver is the source of energy production (table before the Holy of Holies)
The lungs over the mercy seat look like angles wings (IMHO)
Just as the OT ark was in symbolic form; our human body is just a symbolic representation of of the reality of the potential of having a spiritual Jesus rule and rein on earth. I realize this sounds a little far out. I also realize it presents how sacrafices are presently offered in us (as we confess our sins). We become a kingdom of priests (probably of man due to our sins) and the Melchizedek high preist, Jesus, is in heaven. Actually the permanance of Jesus reigning is probably why a temple was built for a time then was destroyed. Jesus now reigning in heaven. Symbols are hard to be understood, and we do not know the details of the physical ark today nor even all the details of what this post points toward. What I am talking about does not have all the information today, but this is the (we see through a glass darkly). This all is a spiritual journey into looking at spiritual realities.
Revelation 21:22 And I saw no temple therein: for the Lord God Almighty and the Lamb are the temple of it.
Now the physical external temple does not exist, but (IMHO) the reality of the sacrafice of Jesus is now established, and the Father and Son are the light. I realize i am a jerk from Mississippi talking of mighty strange thoughts. I realize that it does not fit perfectly with every doctrine out there, but it does seem to fit what we face today. One day the present will move into eternity. Just what are the details? I am for it whichever way it happens.
eddif