Julian Assange will address the United Nations via videolink on Thursday as Ecuador's foreign minister and William Hague plan to engage in fresh talks over the fate of the Wikileaks founder.
Assange will make a statement to the UN in New York from the Ecuadorian embassy in London, where he has been holed up since June.
The speech marks the 100th day since Mr Assange dramatically walked into the embassy after skipping bail to avoid extradition to Sweden, where he is wanted to face allegations of sexual offences.
Ecuador's president Rafael Correa has said he is willing to discuss Assange with Britain
He fears being sent to the United States if he travels to Sweden, to face interrogation over the whistle-blowing website.
He has been granted political asylum by Ecuador but faces arrest if he leaves the embassy after breaking bail conditions.
Foreign minister Ricardo Patino will meet Foreign Secretary William Hague an Ecuadorian official said, adding:
"We hope that tomorrow's meeting will mark the beginning of a new chapter in seeking a solution to the present situation.
"For the part of the Ecuadorian government we are more than willing to find an amicable answer that respects the values of international human rights and the integrity of sovereign nations."