My prediction,

Trump will have impeachment article written against him in the house. The Senate will stop it. This will become a rallying cry, combined with the firing of deep state government employees and subsequent Senate confirmation of Trump loyalists. The left will scream Hitler rising.

Violence will break out in the street, leading to martial law as Trump is forced by actions done in the name of ANTIFA to lock it all down. This will lead to the average republican American to praise Trump. While the Democrats will continue to cry he is a dictator.

Just like Rome transitioned from Republic to Empire under Julius, Trump will use national security and already established law, administrative regulations and precedent to protect the "American Dream". We who support Trump will allow him to do this the same way Julius was elected Dictator. It is all legal.

Meanwhile, China will continue to assert control over the South China Sea. Russia and Nato will eventually have an accident where several soldiers from the other side are killed. This will escalate first with sanctions and threats, then by nuclear launches.

Nuclear strategy takes over and he who strikes first wins. So likely America will strike with nukes first, as the conventional military is stretched fighting Antifa in our own streets.

Who will win WW3 is still up in the air, Russia and China combined do have a chance at winning. Especially if they strike first. Though I still think America will be first to launch. Either way, World war 3 will begin with the weapons that ended world war 2. Air-superiority, missiles, and nukes.

It will end with scramjets and nuclear fusion power and amazing batteries that last years. Cloning technology will also likely go mainstream in WW3, as the modern battlefield is unsurvivable. So to keep up numbers of soldiers clones and drones will become the norm. This will revolutionize healthcare, like plastic surgery, came from the horrors of World War One.

If China/Russia win, I see the world remaining very much how it is today. With the exception that the consumer power will shift from the U.S.A. to the South East. The currency will likely be a basket of centralized crypto-currencies. This will largely be administrated by China in the East and Russia in Europe.

If America wins, we will have an Empire for a few hundred years. We will dictate what is or is not civilized. The dollar, well the crypto-coin version of it will underwrite the world. So the economic power will remain with the Dollar. Being an American Citizen will be the most important thing. Just like in the Roman Empire, being a citizen was all that mattered.