My theory starts with the premise that Zelensky and Putin truly hate each other. Trump has already negotiated a peace agreement with Putin, but the one demand Putin has is that he will not make peace with Ukraine while Zelensky is still President.
Today's theatrics threw Zelensky under the bus and he will be forced out of office by his own people.
The new or acting President will then allow for prosperous negotiations to go forward ending in Putin keeping the Donbas and America owning half of Ukraine's mineral rights.
Wouldn't new elections in Ukraine take months? They take several months in the U.S. I would HIGHLY doubt that Pres. Trump wants to wait until summer (for Ukraine elections) before locking down a peace deal/ceasefire, especially after he said repeatedly that he "would end that war before he even stepped foot in office."
Sadly, POTUS already has egg on his face bigly from that unfulfilled promise. In this instance, I'd think Trump would be more interested in speed ending the bloodshed on both sides vs. perfection of whatever 'deal' is made.