We will continue flipping back and forth between two warring and, to the opposition, insane governments until the demographic death of the GOP.
I'm not optimistic about what happens at that point.
More options than "Trump because the economy even though he said all that stuff" and "Hillary because seriously _that guy_ with nukes?!" might allow a majority of people to actually agree on something rather than focussing on who can more strongly disagree.
I was very hopeful about Johnson making a dent this year, but what little coverage he got made him look like a fool.
GOP isn't going anywhere because of the birth rate of religious groups, and the fact that religious immigrants tend to skew right the longer they've been in the country.
The Democrats aren't going anywhere because of the rate of attrition from religious groups. They have lower birth rates than the Republicans, which balances things out.
Balance of power is going to depend on:
1. The ratio of birth rates 2. The level of religious attrition in future generations
Look at that. It's all about the children :-)
I left fringe groups out of both sides.
If they can manage to avoid (being perceived as) antagonizing hispanics, I expect the GOP can survive quite a while with an otherwise unmodified platform.