The WT also has an interesting definition of "immediately." it can span several centuries.
From the 12-15-74 WT:
Jesus gave these warnings, which had an application, first, to Jerusalem with her people, and then to Christians during the centuries after Jerusalem’s destruction. Following this warning he used the expression “immediately after the tribulation of those days.” (Matt. 24:29) This expression constituted a division, timewise. What he said from this point on applied only in onesense, namely, in modern times, not to Jerusalem back there. How can this be properly said?
The first-century usage of the term translated “immediately” (Greek, euthéos) was different from our use of the English word today. The Greek expression did not necessarily mean that there was no time lapse. Dr. A. T. Robertson’s WordPicturesintheNewTestament, in explaining this fact, refers to a similar expression (though a different Greek word is used), saying: “The use of entachei [“shortly”] in Rev. 1:1 should make one pause before he decides. Here we have a prophetic panorama like that with foreshortened perspective.” Also, we might note the long lapse of time involved in the expression by the apostle Paul: “The God who gives peace will crush Satan under your feet shortly.”—Rom. 16:20.
Actually, Jesus spanned a space of centuries of time by the expression “immediately after,” for the things he thereafter described were not seen in the first century. Historical records do not show that the Roman besiegers of Jerusalem and the other “tribes of the earth” beat themselves in lamentation at any sight of the Son of man coming on clouds and with “power and great glory.”
Rather, the things Christ here foretold find their fulfillment in our time. He predicted the darkening of conditions in the world, as if the sun had gone out and the stars had fallen from heaven, there being no bright outlook ahead. These things have happened since 1914, when World War I marked a turning point in world affairs, introducing the darkest period of mankind’s history.