In all likelihood, America will suffer all of the above, in stages. In fact, I would posit that we're already well into the first phase, which is Tyranny.
Yes, President Trump is our 'great hope', to roll back and bring the burgeoning tyranny of the federal government to a halt, but let's face it, he's just one man, and may not succeed in righting our course during his eight years in office. If he (and we) cannot stop the juggernaut of tyranny, it will lead to Unrest.
I don't think any of us can predict with accuracy, what the Unrest will really look like, or what its full scope will be, but we all know that it's going to be messy and violent. The Tree of Liberty will surely be refreshed.
Only at the end of that violence, do I foresee a Divorce, when all will agree that it's a better solution than continuing the mayhem and destruction.
I don't think the left has much stomach for ACTUAL "mayhem and destruction." They're perfectly willing to see it visited on their constituents and their opponents, so long as they can rest secure in their little enclaves.