From your link: Matthew 16:28, it says:
Verily, I say unto you, there be some standing here which shall not taste of death, till they see the Son of Man coming in his kingdom.
One by one, all the apostles died. And the world rolled on for everyone else. . . .
"The Kingdom of God" was already "at hand" when Jesus was with the Disciples. He started "coming into his Kingdom" in the transfiguration which some of the apostles there witnessed.
I didn't read the whole thing, but I'm guessing that they did not mention Isiah predicting that Isreal would be restored from Babylonian captivity by a foreign King named Cyrus 150 years before Isreal was restored from Babylonian captivity by a foreign King named Cyrus. Lucky guess perhaps?
Just you wait and see!