Russian President Vladimir Putin has said his Iranian and Turkish counterparts have supported a proposal to hold a "Syrian people's congress" that will bring together government and opposition figures.
The Russian President on Wednesday (November 22) hosted Hassan Rouhani and Recep Tayyip Erdogan, just as some Syrian opposition groups met in Riyadh, Saudi Arabia's capital, before United Nations-sponsored talks in Geneva.
"The congress will look at the key questions on Syria's national agenda," Putin told reporters at the summit in the Black Sea resort of Sochi, sitting alongside Rouhani and Erdogan.
"First of all, that is the drawing-up of a framework for the future structure of the state, the adoption of a new constitution, and, on the basis of that, the holding of elections under United Nations supervision," he said.
The congress is expected to also take place in Sochi before the next round of Geneva talks on November 28. However, no details about the exact date or who will be invited to attend were released.
In a joint statement, the three leaders underlined the need for all warring sides to release all prisoners and hostages, hand over bodies and create the conditions for a lasting truce.
They also urged the international community to provide humanitarian aid, clear Syrian territory of mines and restore infrastructure wrecked by the long-running conflict.
Now in its seventh year, the war in Syria has killed hundreds of thousands of people and displaced more than 12 million.
Syrian opposition in Riyadh says Assad has to go
Syrian opposition groups meeting in Saudi Arabia have renewed their demand for the removal of President Bashar al-Assad in a draft resolution obtained by Al Jazeera.
The groups said that a solution to the war in Syria can only be achieved with the departure of Assad at the start of the transitional period - a position held by the Syrian opposition since the start of the war, now in its seventh year.
"The participants agreed that the goal of the political settlement is to establish a state based on the principle of citizenship, which enables the Syrians to draft their constitution without interference and to choose their leaders through free, fair and transparent elections in which the Syrians participate inside and outside Syria under the supervision of the United Nations," the draft resolution reads.
The communique stipulates that a transitional governing body "could include members of the present government and the opposition and other groups and shall be formed on the basis of mutual consent", but does not make any specific mention as to who exactly from the current government should stay on.
The 'slow-motion slaughter' of Syrian civilians
As the Syrian conflict entered its seventh year, about one million children have been orphaned by the war in Syria which is in its sixth year, according to an Aljazeera report.