Ankara does not deny that the Incirlik Base may be given to Russia

 The Turkish newspaper "Hurriyet" Writes about this.

In response to yesterday's statements made in the Council of the Federation, that the next logical step would be to provide Turkey Inzhirlik base for Russian operations in Syria, "Hurriyet" quoted Turkish Foreign Minister Mevlut Cavusoglu.

Even during the visit to Russia, he said that Ankara offers Moscow to carry out anti-terrorism operations together. "All the proposals are still on the table," - added the Minister.

More Background on this from Katehon:

Iranian experts believe that the emerging likelihood of an Erdogan visit will finally resolve their differences, and will create an effective coalition that will be able to proceed to the matter of de-escalating the war in Syria, and marginalize the destructive forces represented by the West and the Gulf states. The tripartite coalition will be created by Russia, Iran, and Turkey and will occupy a leading position in the region.