In the event of an improbable Trump win, I expect a ripple effect to people of other nations that they too can overcome the long standing parties, societal narratives, and conspiring media that are no longer serving the best interests of the citizens. Trump, the man, may be a donk, but his unlikely election coupled with the unlikely Brexit will likely inspire more people in other nations to go in a a direction that they secretly longed for, but did not previously think was possible given the establishment control.
I know this will sound extreme to some, but it could have an effect like the East Germans rising up to demolish the Berlin Wall in 1989. Just a year earlier that seemed inconceivable. Yet that rebelling mindset quickly spread throughout the Eastern bloc and within a couple of years Soviet control over all those nations was lost.
Parties based on ideas that were thought doomed to fail just a few short years ago will rise in other nations, in part, based on inspiration from a Trump win (should that event transpire.)