Generally agree with your analysis, very good one.Trump is no doubt sending messages to Syria, Russia, DPRK, and Red China, and the US/Western media and politicians give the President very high marks. I think they're overly optimistic on how effective the messages will be.
Lots of politicians and talking heads cheer the Tomahawk strikes on Syrian air field, and it's likely Assad wouldn't use chemical weapons again. That's the good part. The not so good part is US/NATO will tolerate 400k Syrian deaths with conventional munitions, and Assad basically has a tacit OK from the West to go on killing, as long as he doesn't use chemical weapons. Why would US/NATO do that? Because it's their least bad option. Assad owes Putin.
On the DPRK, Kim Jun-un will be more careful about his travels and might sleep in different places going forward, but the Syrian strike will do little to impede his nuclear and ballistic weapons development. It might have the opposite effect with Kim speeding up his weapons development. I say that because while US could simultaneously strike multiple North Korean military sites, it can't quickly take out the thousands of artillery pieces trained on Seoul. A single volley from those guns, with conventional ammunition, could kill hundreds, injure thousands, and bring ROK's Capital to a screeching halt. So, it's unclear if the South Korean government would sign up to an attack on the North, even if Trump wants to do it. And then there's the tricky problem of the PLA in northern Korea, should the DPRK collapse.
Libya and Ukraine gave up their nukes in exchange for Western promises of security, but after the West reneged on its promises, no country would ever give up nukes in the foreseeable future. Mission accomplished for the Liberal World Order; the urgent trumped the important. Good work, guys and dolls.
China knows it's in the catbird seat, and time is on its side. So Beijing would likely placate Trump with some consequential trade concessions that could benefit both sides. The balance of power in Asia will probably continue to tilt in China's direction, and without US-lead TPP, that's not likely to change. So, it's probable China will offer meaningful trade, investment, and IP concessions and use them as tranquilizing shots for Trump, and in the process it might pry open more US markets and investments too.
I do however remain opened to what actually happened to the recent "chemical attack" incident by the fact of non-existence of independent investigation from the not long ago experience of Iraqi WMD. Bolivian representative to the UNSC just made a passionate speech few days ago, video can be found on YouTube. However, by this stage, the truth finding is past, and we will never know, nor does it really matter to the "sending of messages".
Regarding the economy perspective, the word "probable" is a good choice. I may see a lesser probability while you may see a higher one, but nobody can rule that out.