I see the Zech.14:6 & Rev.22:5 connection, but notice Rev.22:14-15 is about the Millennial timing because the wicked are still existing outside the gates of the holy city.
For a long time that is what I thought as well but with a little study we find it is just the same warning repeated that those who live their life as sinners will not be allowed into the kingdom of God. See 1Cor. 6:9, Gal. 5:19, Col. 3:6, Philemon 3:2 and Rev. 21:8. It isn't stating that we will actually see them outside the gates of the NJ, just only those that do vs. 14 are allowed in.
Those waters of Zech.14:8 refer to God's River on earth. Ezekiel 47 is showing it flowing out of the Millennial sanctuary, which when the millennium is over, that sanctuary of Ezekiel will no longer exist. So Zech.14:8 is not new heavens and new earth timing either
Although the waters seem to come from the same source they are different rivers with different purposes. The one from Ez. 47 brings healing to the waters that were affected by the trumpet and bowl judgments. When that is accomplished that river will be no more but the river in Zech. 14 and Rev. 22 both reference the living/life. Those waters will aide in the eternal aspects of the New heavens and earth.
Regarding the phrase "as a thief in the night" it is just that, a descriptive phrase denoting suddenly and w/o warning. The phrase in Thess., Peter and Rev. are all different events with different timings within the day of the Lord. Similar to "as dark as night" or as "bright as day". They are simply common phrases that can denote several things and times depending within what context they're used. Sometime I'll post a study on Rev. 16:15 and it means nothing like most people believe it means.
But the main one is about the idea of Jerusalem as a harlot in Ezekiel 1
Just because a phrase is used once or more to describe a specific thing does not mean that every other time the word is used it is describing the same thing. Yes, Jerusalem and Israel in general have been described as a harlot and other similar terms but that has absolutely no correlation to the term being used in Rev.