It says that Jesus will come quickly and judge everyone according to their works. Yet, other scriptures point out that salvation is provided from God by grace through faith, and not because of works of righteousness that we have done.
John 14:23 Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and
we will come unto him, and make our abode with him.
Did Jesus and the Father come to you and make their abode with you? Are you not a temple of God?
John 5:24 Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and
does not come into judgment, but has passed out of death into life.
If you are born of God in Christ, then you were already judged (old man executed) and eternal life is the reward for the work you have done in a sense.
John 6:29 Jesus answered and said unto them,
This is the work of God, that you believe on him whom he has sent.
So, here's a reiteration of the issues I have here.
1. The Book of Revelation claims repeatedly that the things written here must come to pass in the very near future.
Two thousand years ago is not the near future.
2 Peter 3:8 But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.
Psalm 90:4 For a thousand years in thy sight are but as yesterday when it is past, and as a watch in the night.
2. God says that if someone prophecies in his name and it doesn't come to pass, it's not from him.
It's coming to pass in front of you. I don't see any example you have given as being a false or suspended prophecy.
3. The writer of Revelation seems to be claiming that salvation is accomplished by obeying commandments rather than by God's grace and mercy.
Jesus said, "If ye love me, keep my commandments." John 14:15
I don't read that as "salvation is accomplished by obeying commandments" and don't understand why you read it that way. If you don't read John 14:15 that way, then you should have no beef with what is written in Revelation about keeping commandments.
The idea of keeping commandments is throughout the New Testament writings, not just in the writings of John, but also Paul's writings. It is a mistake to assume that keeping commandments equates to trying to keep them for salvation because one can keep a commandment by nature (I'm reminded of your comments on coveting).
Romans 2:14 For when the Gentiles, which have not the law, do by nature the things contained in the law, these, having not the law, are a law unto themselves:
So, my questions are....
1. Is Revelation a false prophecy that should be rejected as the Eastern Church did, and not included in the canon of scripture?
I would not counsel anyone to reject the Revelation of Jesus Christ as written by John, but I would caution people to interpret it carefully and not teach an interpretation contrary to the authors intent.
Revelation 22:7 Behold, I come quickly: blessed is he that keepeth the sayings of the prophecy of this book.
2. Is the Book of Revelation a prophecy ordained by God but was suspended with other prophecy and we just don't know about it?
The prophecies in question have not been suspended in any sense.
3. Is there some other explanation for why the things written here did not come to pass?
Everything has and will continue to come to pass.
4. Do you believe it righteous or unrighteous to ask these questions?
Luke 11:9 And I say unto you, Ask, and it shall be given you; seek, and you shall find; knock, and it shall be opened unto you.