Assange, 52, has agreed to plead guilty to a single criminal count of conspiring to obtain and disclose classified US national defence documents, according to filings in the US District Court for the Northern Mariana Islands.
The deal marks the end of a legal saga that has seen Assange spend more than five years in a British high-security jail and seven holed up in the Ecuadorian embassy in London.
Julian is free!!!!— Stella Assange #FreeAssangeNOW (@Stella_Assange) Words cannot express our immense gratitude to YOU- yes YOU, who have all mobilised for years and years to make this come true. THANK YOU. tHANK YOU. THANK YOU.Follow @WikiLeaks for more info soon…pic.twitter.com/gW4UWCKP44June 25, 2024
"I'm just elated," she told BBC Radio on Tuesday.
"He will be a free man once it has been signed off by the judge and that will happen sometime tomorrow," she said speaking from Sydney, Australia, where Assange is expected to head after he appears in a courtroom on the Pacific island of Saipan.
She said she had flown to Australia on Sunday with the pair's two children, aged seven and five, and had told them there was a "big surprise" coming but that she had not been certain of what would happen until the last minute.
"It's been so touch-and-go, we weren't really sure until the last 24 hours that it was actually happening," she said.
She said she did not want to say too much before the US judge approved the deal.
"It's just incredible. It ... feels like it's not real," she said.