After Rothbard, I seriously doubt that minarchism has a future in libertarian thought. The anarchism in Austrian ranks is nearly 100% - but the anarchism can exist within a Hayekian, Misesian, Lachmannian, Kirznerian, or even Chicagoite theoretical structure. To be a libertarian anarchist does not necessary mean you are a Rothbardian in all respects, and to be a Rothbardian does not imply unwillingness to learn from others.