Revelation 11:15-19, does not say Jesus will have Returned when the Seventh Trumpet is blown. It is a preview of that glorious event.
Proved by how the 7 Bowls must be fulfilled before then. Culminating in the Seventh Bowl, which is Armageddon.
The 7th vial is the earthquake in Revelation 11:12-13.
"And the seventh angel poured out his vial into the air; and there came a great voice out of the temple of heaven, from the throne, saying, It is done. And there were voices, and thunders, and lightnings; and there was a great earthquake."
"And they heard a great voice from heaven saying unto them, Come up hither. And they ascended up to heaven in a cloud; and their enemies beheld them. And the same hour was there a great earthquake."
Seems they resurrected about 11 to 12 hours before the battle of Armageddon. Enough time for all in the area of Jerusalem to get out of the city and set up defensive positions at mount Megiddo in the valley of decision. Along with other armies who had been coming since the 6th vial was poured out the day before. The 2 witnesses would have risen early on a Sunday morning at dawn. Armageddon would be from 5pm to 6pm. Monday is the first day of the Millennial Kingdom.
The 2 witnesses are removed before Armageddon. Those beheaded are resurrected after, in the evening that would be considered Monday. Their ongoing judgments before thrones would happen throughout the night. They do not ascend, as they never leave the earth like the 2 witnesses. They are still dead until after Satan is bound in the pit.
Armageddon is not the Second Coming, and the 2 witnesses are not the church being raptured per Paul. Those beheaded are not redeemed until the point they stand as souls and are judged, and then they are given permanent incorruptible physical bodies, which is the first resurrection, thus their redemption. They are not the church either. They are the only reason the third woe is allowed to happen.
The 7th Trumpet declared time was up 42 months earlier, but the third woe split the week of the 7th Trumpet into 2 halves. That is the point of Daniel 9:27. Daniel 9:27 is not 7 years. It is 7 days. Jesus is King for 3.5 days, then hands over the kingdom to Satan. 42 months later the 2 witnesses are killed and those 3.5 days are the last half of the week of the 7th Trumpet.
The first 6 Trumpets and 7 Thunders sound before the 7th Trumpet sounds. The 2 witnesses are part of the 3rd woe, but their parenthetical explanation is given before John writes about the 7th Trumpet, and the third woe is the parenthetical in chapter 13.
Both parentheticals only happen if the week is split in half. Otherwise it will be a normal 7 days, and then the Millennial Kingdom will start.
Matthew 24:15 is not a false prophecy. It is a warning that when people see it, after the 7th Trumpet sounds, they are to flee Jerusalem and the surrounding area, because the 3rd woe will make life really really bad. The AoD is the last event prior to the end. It is not a first event after the end.
The 7th Trumpet announces the end. But the end is not when the 7th Trumpet starts. The end is when the 7th Trumpet stops.
"that there should be time no longer: But in the days of the voice of the seventh angel, when he shall begin to sound, the mystery of God should be finished, as he hath declared to his servants the prophets."
There should be time no longer, but there may be more time, if God extends time for those who will choose to be beheaded. God confirms the Atonement Covenant with the many after the 7th Trumpet sounds, to see if any more will remain elect by their testimony of chopping their head off.
Those 42 months of the Gentiles trampling the Temple are not the last half of anything. It is time extended by the grace and longsuffering mercy of God. Satan on the other hand and the AoD are the 3rd woe.