Libertarianism as an ideology will not live on for much longer as a separate ideology in the American political consciousness.
No, as a lower case l or as a philology, it will continue and grow. As a party it will continue to falter because not everyone is fit to be as ruggedly individualistic as Libertarianism requires.
Lord no, it's a growing, but also historic ideology dating back for centuries. It's not going anywhere as much as socialist, conservatives, and progressives aren't going anywhere.
Nah. Libertarians are a stubborn bunch (which is not necessarily a bad thing).