The Swedish Supreme Court says it will hear an appeal from WikiLeaks founder Julian Assange to lift an arrest warrant issued in 2010.

Assange has been holed up in the Ecuadorean embassy in London since June 2012 to avoid extradition to Sweden, where prosecutors issued an arrest warrant after two women accused him of sexual assault in 2010.

The Australian, who denies any wrongdoing, in February appealed to the Supreme Court after losing an appeal in November.

His lawyers have argued the Swedish prosecutor had not acted with necessary speed in the case, violating Assange's rights.

No date has been set for the hearing. In the meantime, the arrest warrant was to remain in force, the Supreme Court said.

The Supreme Court only considers cases where it is important to establish a judgment - or precedent - that may provide guidance for lower courts.

Assange's lawyers have criticised the prosecution over rejecting proposals to interview him in London.

The prosecutors argued there was no value in questioning him there since a trial would most likely have to take place in Sweden.

However, the Director of Public Prosecutions Marianne Ny recently changed that stance saying it was necessary to conduct the interview in London as some of the crimes Assange is suspected of "will be subject to statute of limitation in August 2015."

The prosecutors and defence are working on the how the interview can be conducted.

Ecuador granted Assange asylum after he said he feared extradition to the United States, where he is wanted in connection to WikiLeaks' publication of top secret diplomatic cables.