Nah in order you need the Red Heifer, I believe we are on the 4th since the original consecration, but they have to missed one after the destruction of the first temple.

Second you need the 3rd Temple to be built to specification, the issue with this is the dome of the rock. I believe what was supposed to happen was swapping Hagia Sophia from a christian site to a mosque then under Trump’s middle east peace plan Israel gets the 3rd Temple foundation.

The messiah comes to consecrate the 3rd Temple but he is the hardest prerequisite. His feet can have never touched the dust of earth his first step is within the 3rd Temple, then you get the ritual and the red heifer blood and then you setup the false messiah end game basically tricksy bastard will replace and pervert the most high Rabbi during his service and then you are in end of the world times.

Basically as long as none of this happens and a third of the torah remains unused no end of the world.