The Hadena Airbase in Iran is already heavily "filled up" with russian strategic bombers.
Its possible that there is a deal between Russia and USA, the communication lines are open.
Its possible that russia could accept "gentleman strikes" so USA can save its face and piss of with its fleet.
With "gentleman strikes" i mean limited, "cosmetic" strikes on non important objects, with no strategic importance, just a "show"
USA giving Russia the exact coordinates in advance so no Syrian/Russian casualties.
I personally doubt USA will do any serious "military adventure" against Russia there as they took the words of an russian general very seriously "We will sink any ship which strikes"
Just watch this clip of an israeli Ex-Knesset guy, he knows what he is talkig about, so you understand whats going on