Kasich isn't going to win anything, because he has attached himself to the corrupt establishment. A new and improved party would be great, but it's not going to happen IMO, but it really needs to. I'm definitely a fiscal conservative and lean heavily liberal on most social issues. That's pretty much Libertarian if you ask me. I'm also for much much smaller government and much less government intervention, another Libertarian position. I know Republicans claim that, but that's just a Republican establishment lie. The party you speak of already exists, if the sheeple would learn to think for themselves. Also very unlikely to happen, the American electorate is extremely lazy.
It's all about the money. If a few billionaires would back the libertarian party, that would be the difference maker.
If you get a chance, look at the map of the states that have gone to Hillary and Trump thus far. Almost identical, with the largest exception being the state of Texas. The battle for the South is going to be something to behold. Trump is under to gun to pull those out.