"Should the U.N. announce tomorrow that I have lost my case against the United Kingdom and Sweden, I shall exit the embassy at noon on Friday to accept arrest by British police as there is no meaningful prospect of further appeal," said Assange in a statement posted on the WikiLeaks Twitter account.
"However, should I prevail and the state parties be found to have acted unlawfully, I expect the immediate return of my passport and the termination of further attempts to arrest me."
The United Nations Working Group on Arbitrary Detention is expected to announce its verdict Friday on whether Assange is being detained illegally. The decision comes after more than 16 months after the man filed a complaint with the panel about his detention. The panel rules over whether a person's imprisonment or detention is lawful and often leads to releases. Assange argued in his submission that his time in the embassy constituted arbitrary detention.
Assange fears that Sweden may extradite him to the United States, where he could be put on trial over WikiLeaks' publication of classified military and diplomatic documents, which was one of the largest information leaks in U.S. history.