The timing of the judgment on Jordan has been illustrated in Isaiah 16 and Zephaniah 2.It should be at the beginning of the tribulation,not at the end of it like you have suggested.
Instead of going verse by verse,I shall make it brief.
Isaiah 16 is a warning from God concerning Jordan.In the first 5 verses,God has specifically warned Jordan to look after Israel his people,represented by the outcasts in verse 3 and 4,when Israel faces her adversary in the second half of the tribulation.
Isaiah 16:3 Take counsel, execute judgment; make thy shadow as the night in the midst of the noonday; hide the outcasts; bewray not him that wandereth.
4Let mine outcasts dwell with thee, Moab; be thou a covert to them from the face of the spoiler: for the extortioner is at an end, the spoiler ceaseth, the oppressors are consumed out of the land.
For in a little while,a throne shall be established,with the second coming of Christ.
5 And in mercy shall the throne be established: and he shall sit upon it in truth in the tabernacle of David, judging, and seeking judgment, and hasting righteousness.
Jordan is being judged because of the following reason.
6 We have heard of the pride of Moab; he is very proud: even of his haughtiness, and his pride, and his wrath: but his lies shall not be so.
And this is how Jordan will be judged.
7 Therefore shall Moab howl for Moab, every one shall howl: for the foundations of Kirhareseth shall ye mourn; surely they are stricken.
8For the fields of Heshbon languish, and the vine of Sibmah: the lords of the heathen have broken down the principal plants thereof, they are come even unto Jazer, they wandered through the wilderness: her branches are stretched out, they are gone over the sea.
The lords of heathen in verse 8 signals God shall use the gentiles to judge Jordan.
And the timing of her judgment has been foretold by God in verse 13.
13 This is the word that the LORD hath spoken concerning Moab since that time. 14But now the LORD hath spoken, saying, Within three years, as the years of an hireling, and the glory of Moab shall be contemned, with all that great multitude; and the remnant shall be very small and feeble.
Three years shall Jordan be put in shame,and her glory shall be contemned.And the remant shall be very small and feeble.
Now,which 3 years God is talking about?
The three years in the first half of the tribulation,or the 3 years in the second half of the tribulation?
From Daniel 11:41,we learn that AC shall go after Israel in the mid-trib,not Jordan.Jordan is not his target.
And from Zechariah 13:7 and 8,we learn that during the times of Jacob's trouble,2/3 shall be cut off,and 1/3 shall be left therein.The Jews shall be fleeing,they shall also be scattered among the nations.
So,the only logic is to put the 3 years judgment of Jordan in the first half of the tribulation,when Israel possess their land,so that the glory of Jordan shall be contemned,and her remnant shall be few.
And this prophecy shall be fulfilled per the fulfillment of Psalm 83,Isaiah 17 and Zechariah 11:1-10,the cut off of three shepherds.
This view is also supported by Zephaniah 2.
God begins his warning in verse 1-3,by urging the nations to seek him,that they can be hid in the days of the Lord.
Zephaniah 2:1 Gather yourselves together, yea, gather together, O nation not desired;
2Before the decree bring forth, before the day pass as the chaff, before the fierce anger of the LORD come upon you, before the day of the LORD'S anger come upon you.
3Seek ye the LORD, all ye meek of the earth, which have wrought his judgment; seek righteousness, seek meekness: it may be ye shall be hid in the day of the LORD'S anger.
And God has laid out his judgment in three different sequences,or period.
God begins his judgment with Gaza,Philistine(Palestine),and Jordan,from verse 4-11,with the end result being that his people Israel shall inherit the land of Jordan.
And from verse 12,we learn that Ethiopian shall be the next.
When shall Ethiopian be judged during the tribulation?
We learn from Daniel 11:42-43 that Ethiopia like Egypt shall be invaded by AC during the second half of the tribulation,right after AC invades Israel.
And God concludes Zephaniah 2 by proclaiming that he shall destroy Assyria,and making Ninevah desolate,with the following verses.
Zephaniah 2:13 And he will stretch out his hand against the north, and destroy Assyria; and will make Nineveh a desolation, and dry like a wilderness.
14And flocks shall lie down in the midst of her, all the beasts of the nations: both the cormorant and the bittern shall lodge in the upper lintels of it; their voice shall sing in the windows; desolation shall be in the thresholds: for he shall uncover the cedar work.
15This is the rejoicing city that dwelt carelessly, that said in her heart, I am, and there is none beside me: how is she become a desolation, a place for beasts to lie down in! every one that passeth by her shall hiss, and wag his hand.
And we all agree that Babylon or Assyria shall be judged by God near the end of tribulation.
In brief,God begins his judgment on Gaza,Palestine and Jordan at the beginning of tribulation.
Mid-trib we have Ethiopians.
At the end of the trib,we have Assyria or Babylon.
My conclusion,both Isaiah 16 and Zephaniah 2 suggests Jordan shall receive her judgment at the beginning of tribulation,not at the end of the tribulation.
Even Obadiah 1 has suggested it also.But I don't have time to go over Obadiah 1 now.
And concerning Jeremiah 25:15-38,it is known as Judgment of The Nations to many bible scholars.It is not about God gathering all the nations against Israel,but it is about God sending swords to all the nations.
Jeremiah 25:15 For thus saith the LORD God of Israel unto me; Take the wine cup of this fury at my hand, and cause all the nations, to whom I send thee, to drink it. 16And they shall drink, and be moved, and be mad, because of the sword that I will send among them.
Verse 17-26 lists out the participants of God's judgment.They are all the nations that dwell on this earth.
And this is how God shall judge all the nations.
15 For thus saith the LORD God of Israel unto me; Take the wine cup of this fury at my hand, and cause all the nations, to whom I send thee, to drink it. 16And they shall drink, and be moved, and be mad, because of the sword that I will send among them.
29 For, lo, I begin to bring evil on the city which is called by my name, and should ye be utterly unpunished? Ye shall not be unpunished: for I will call for a sword upon all the inhabitants of the earth, saith the LORD of hosts.
Will God judge all the nations by bringing in the world war 3?
Is this what the "sword" means?
I believe so.
I have listed out the future events in a chronological order under my thread "A possible timeline".
Feel free to read it.