Whether the old one survived or not is irrelevant, because a new one can be reconstructed if necessary. What is important is the right of the one who sits on it to sit on it. Peter says in Acts 15:16-17 that the tabernacle of David which is fallen down will be rebuilt by the one whose right it is to sit on it. What do prophets teach on the matter? Should we allegorize them away?
When you speak of "the right of the one who sits on it to sit on it", are you speaking of the second Person of the Trinity, or some other Christ?
Jeremiah says, "The Throne will last as long as the days and night cycle" [Jeremiah 33:19-26].
Jeremiah, himself, made sure the seed of David was safe by removing the King's daughters from danger after King Zedekiah had his sons slain before him and then blinded by his Babylonian captors [II Kings 25:7]! Jeremiah took these "Daughters".......somewhere! The prophecy was spelled out in [I Kings 2:4][Psalm 89][II Chronicles 6:16]. Zedekiah, of course being the last Biblical King to sit on the throne of David.
Watch out Uncle....they're startin' to call you names again!
It is totally relevant. You are trying to say I am reducing this down to an "allegory". I'm not. I'm saying this promise was fulfilled with Christ who now sits on a very physical throne, the throne of David.
Isa 9:6-7 For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counselor, The mighty God, The everlasting Father, The Prince of Peace. Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth, even forever. The zeal of the LORD of hosts will perform this.
Mar 12:35-37 And answering, teaching in the temple, Jesus said, How do the scribes say that Christ is the Son of David? For David himself said by the Holy Spirit: "The LORD said to my Lord, Sit at My right hand until I place Your enemies as Your footstool." David therefore himself calls Him Lord, and why then is He his son? And the great crowd heard Him gladly.
Peter's remarks in Acts 15:
Christ reigns right now. He hasn't been sitting on His hands for 2,000 years waiting for the "right" moment. He doesn't need a cheap, wooden, manmade throne when God the Father has created a beautiful throne surrounded by a rainbow, a symbol of His promise and mercy. He is our King of Kings and Lord of Lords reigning and leading His church victorious to the final days, to the praise and glory of His name.