This is a nice example of how delusional some of the people in positions of power are. I'd be very surprised of the Russians EVER had any such plan, but despite this, the CIA and Pompeo dreamed it up, probably to give themselves something to do.
CIA was ready to wage gun battle in London streets against Russian operatives to kill or snatch Assange, bombshell report claims
Under Obama, the CIA wanted to define Julian Assange and other journalists as “information brokers” in order to ramp up their spying on them. And during the Trump era, it prepared plans to abduct or kill the WikiLeaks founder.
At the peak of preparations for hostilities in 2017, the CIA was allegedly expecting Russian agents to help Assange flee the Ecuadorian Embassy in London. In such a contingency, the Americans, together with the British, were planning to engage in street battles against the Russians, potentially starting a firefight, ramming a Russian diplomatic vehicle, or shooting at the tires of a Russian plane to prevent it from lifting off, the story said. The attempt to spring Assange was reportedly expected on Christmas Eve.