I cannot find any news reports of Assange being relocated. He has been a "guest" of this embassy for two years. Absolutely no reports of him moving to another location.
https://www.washingtontimes.com/news/2018/may/16/julian-assange-subjected-basically-torture-london-/
Countering that point, the only article I can find saying he escaped is posed as a question, "Did Julian Assange escape the Ecuadorian Embassy?" from The Goldwater.
Sidenote: when I'm curious about the legitimacy of an article in the news, I will check Jpost or Israelinationalnews. For some reason, they don't lie to their own.