Senior district judge Emma Arbuthnot is due to give her ruling on Tuesday, although either side can appeal against the decision.
Assange only very rarely emerges on the balcony of the embassy building, citing concerns for his personal safety, but frequently takes part in media conferences and campaigns via video link.
Assange entered the embassy in June 2012 to dodge a European arrest warrant and extradition to Sweden over a 2010 probe there into rape and sexual assault allegations.
He has long feared that if he leaves the embassy he could be sent to the United States to face trial over the leaking of hundreds of thousands of secret U.S. military and diplomatic documents.
But even if the judge had dropped the British arrest warrant, WikiLeaks warned Assange could face life in prison in the United States on charges of espionage, conspiracy and theft related to WikiLeaks' publishing of secret US government cables.
Thursday Morning, February 1, 2018
The mercury hovers there throughout the day on Friday with a brisk northwest wind providing wind chill values at, or below zero. These will bring a decent round of precipitation in the form of snow to the north and of heavy rain south and east.
Pence Slams Manchin Over Votes on Tax Reform, Health Care
He also touched upon the opioid crisis that is crushing southern West Virginia, along with many other regions of the country. With the veep making a visit to West Virginia, he made a decision to go after the state's Democratic senator.