Note that in Revelation 1:1,3, as in Revelation 22:6,10, "shortly" and "at hand" can be understood in the same manner as "Surely I come quickly" in Revelation 22:20, which refers to Jesus' still-unfulfilled 2nd coming. I.e., shortly/at hand/quickly in these verses can be understood from the viewpoint of God, not men (2 Peter 3:8-9).
"Blessed is he who reads and those who hear the words of this prophecy, and keep those things which are written in it; for the time is near." (Revelation 1:3 NKJV)
"kairos" is time "a
fixed and
definite time, the time when things are brought to crisis, the decisive epoch waited for."
Example:
And suddenly they cried out, saying, What have we to do with You, Jesus, You Son of God? Have You come here to torment us before the
time? (Matthew 8:29 NKJV)
"eggys" is near "can be of
place and position or of
time."
Example:
Place: Now Bethany was
near Jerusalem, about two miles away. (John 11:18 NKJV)
Time: Now the Passover, a feast of the Jews, was
near. (John 6:4 NKJV)
The way I read Rev. 1:3 is it's a reference to the fixed, or appointed, time of the prophecy being near.
Also, from the viewpoint of men, part of what Revelation chapters 2-3 foretold could have begun unfolding "shortly" (Revelation 1:1,3) after John saw his Revelation vision. For the letters to the 7 literal, 1st century AD local church congregations (Revelation chapters 2-3) in 7 cities in the Roman province of "Asia" (Revelation 1:11b) could have foretold a 1st century persecution (Revelation 2:10, Revelation 3:10) under the Roman Emperor Domitian which happened shortly after John saw his vision around 95 AD, near the end of Domitian's reign (Irenaeus, Against Heresies 5:30:3c). But even all the (to us) still-future events of the tribulation and subsequent 2nd coming of Revelation chapters 6 to 19 will unfold "shortly" (Revelation 1:1,3) or "quickly" (Revelation 22:20) after John saw his vision.
I agree the events began to unfold shortly. John wrote to the church in Philadelphia and told them, "Because you have kept My command to persevere, I also will keep you from the hour of trial which shall (literally:
is about to) come upon the whole world, to test those who dwell on the earth. Behold, I am coming quickly! Hold fast what you have, that no one may take your crown." (Revelation 3:10, 11 NKJV)
This first century church was told the hour of trial was
about to come and in light of that, to hold fast to what they had.
I am among those who accept an early date for the writing of the Revelation (circa AD 62-64). I know there is at least one thread here that discusses the date. I agree with the evidence presented in Ken Gentry's book, "Before Jerusalem Fell."
For from the viewpoint of God, even the passing of some 2,000 years is like the passing of only 2 days (2 Peter 3:8). Christians should look at the future fulfillment of Revelation chapters 6 to 19 (and Matthew 24) from the viewpoint of God, not men, for whom the passing of some 2,000 years seems like a long delay for its fulfillment (2 Peter 3:9).
This explanation is difficult to accept when one considers the audiences of both Peter and John. Peter, writing to the twelve tribes of the dispersion, wrote: "He indeed was foreordained before the foundation of the world, but was manifest in these
last times for you" (I Peter 1:20 NKJV) and "But the end of all things is
at hand (near); therefore be serious and watchful in your prayers." (I Peter 4:7 NKJV)
Peter and his audience were aware they were living in the last times, and that the end was near.
He addressed the same audience when he wrote: "knowing this first: that scoffers will come in
the last days, walking according to their own lusts, and saying, Where is the promise of His coming? For since the fathers fell asleep, all things continue as they were from the beginning of creation. (II Peter 3:3, 4 NKJV)
The scoffers
failed to accept Peter's inspired words.
Since both John and Peter identified their audiences and told them the time was near it doesn't appear they were telling them to understand the epistles from God's viewpoint.