The Turks will never permit this. Never.
Any ‘safe buffer zone” will simply be a training ground for US Turkish Qatari and Saudi funded proxy ( foreign mercenary) islamist attacks on Russia and Assad
Bryan Suits was saying this on his show last night. He’s got buddies in the special ops community that he features, anonymously, on his radio show and he’s not one to exaggerate so we’ll have to see how it plays out.
Turkey wouldn’t be happy with a virtual Kurdish state within Syria’s borders but there may not be much that they can do about it with Russia backing Syria.
It’s just more evidence that the Middle East and the Balkans are a hornet’s nest best left alone.