What Republicans need to do is expel the psychopathetic libertarians from the party who think killing babies is a good thing. Ron Paul dragged Romney down with his craziness.
In summary... get lost freak.
I am not a fan of Ron Paul and his loopy conspiracy brigades, but the general libertine message of government out of our lives at every level is probably the direction the party will go. None other than Sarah Palin has made this point many times, that we should pay more attention to Ron Paul and libertarians in general.
Future campaigns are going to be run much more like Bob McDonnell in VA. He is a social conservative, but didn't touch those issues on the campaign trail. GOP candidates are going to increasingly avoid the social issues and run on economic/fiscal policy.