"Houston, we still have a problem."
What part of the following do you not understand?
Da 2:40-43 - "Finally, there will be a fourth kingdom (not plural). . .strong as iron. . . it will crush and break all the others (previous three). . .it will be a divided kingdom. . .the people will be a mixture who will not remain united, any more than iron mixes with clay."
The iron and clay are figurative of a divided kingdom in terms of its citizens, not in terms of two different times of existence.
That mixture of peoples resulted in the 10 kingdoms which came out of the Roman empire.
The text clearly shows that the statue was a figure of four kingdoms.
Da 2:44 - "In the time of those kings (of vv. 39-40), the God of heaven will set up a kingdom that will never be destroyed nor will it be left to another people. It will crush all those kingdoms and bring them to an end, but it itself will endure forever.
This is the meaning of the vision of the rock cut out of a mountain but not by human hands--a rock that broke the iron, the bronze, the clay, the silver and the gold to pieces."
Note that:
1) the fifth kingdom was set up during the Roman empire which crushed all the other kingdoms,
2) the fifth kingdom was set up by God at the first coming of Christ during the Roman empire,
3) the fifth kingdom set up by God which followed the Roman empire, crushed both the iron and the clay because they were one kingdom, the Roman empire of Christ's day.
The text clearly shows that the fifth kingdom of Da 2:44 was set up by God during the Roman empire, at the first coming of Christ.
It endures forever, so there is no future temporal Messianic kingdom.
So what part of Da 2:40-44 here do you not understand?