I feel sorry for the Russian pilots. But this is what happens when you lie constantly, and then cover up it up with more lies. The Turkish government summoned the Russian ambassador in October and gave out a strict warning which was mostly laughed off by the Kremlin. Flying over and violating Turkish airspace undermines Turkey's credibility and makes Turkey appear weak, that's exactly why they do it.
Cause, while you're busy fighting a very-well financed and large force that has a very catchy "allahu akhbar!" motto, it's extremely important to keep track of what's really urgent and waste money, fuel, time and resources just to make a certain country appear "weak". Lol come on, think.
What this might be really about though is that Russia's been substantially disrupting the Isis-Turkey oil exchange, which allegedly is controlled by Erdogans beloved son.
But don't mind me, believe whatever you want. Those pesky daredevil Russian pilots got what they deserved for flying over Turkey (which, btw, isn't even a sure thing to claim, even Pentagon with their obvious bias are waiting on this before making any statements).
In any case, i actually tend to agree with Leshma on the topic of Russia's response. I think it won't be as obvious and dramatic in terms of publicity and media coverage. One of the more believable (to me, at least) ways to get back at Turkey for this might be that Russia will start supporting Kurds, either with providing them with weapons and finances or diplomatically, maybe both.