The best-case scenario is that Trump won’t do any of the things he said he would.
Worst-case scenario is that he gets us in WWIII.
Another odd scenario is that Trump’s fascist agenda lasts for the next 4-8 years (though I think he will get himself impeached before then). The rich get richer and the poor get poorer until they’re about to break. The youth of today listen to Senator Sander’s message of social justice, and his benevolent revolution falls into the hands of disgruntled youth who overtake the government in a military coup, establishing socialism as the New Normal.
What I really think will be interesting is the overall reaction of middle America in a few years, when they finally open their eyes after they realize they’ve lost their medicare benefits, social security is gone, interest rates, inflation, and gas prices go through the roof, coastal cities begin to flood, and they are taxed through the nose to pay for that stupid wall. Not to mention when they realize that all those supposed tax breaks really only benefit a select few- namely corporations, the rich, and wealthy married people. Never mind if/when we find ourselves in an all-out war.