The exact date of the meeting was not given, but Yildirim said Tuesday it would took place "at the earliest".
Speaking to reporters on the sidelines of the ruling Justice and Development (AK) Party's group meeting in the parliament, the premier advised caution on reports about the draft of the constitution.
"It is not right to announce the details of the draft constitution without coming to terms with it," he said, adding: "Do not pay attention to rumors."
About whether Turkey’s president could be the chairman or a member of his political party, Yildirim said: "It will all be clear soon."
The government has long sought to replace the current parliamentary system with a presidential one, saying there are flaws in the set up, which also holds back Turkey’s development.
On Oct. 30, Yildirim said a committee within the AK Party had completed its work on a draft constitution that also included items for a presidential system.
The proposed changes would be put to a public referendum even if the government got the necessary votes in parliament to avoid the need for one, Yildirim had said.