There is a growing populist trend among social conservatives who are becoming less concerned with moral issues and more with Health Care and Education and they typically favor big government solutions to both issues. The one Presidential candidate who represented this was Mike Huckabee. As Barry Goldwater once said "he scares the hell out of me". This movement if unchecked would lead to an exodus of Libertarians and economic conservatives over to the Democrats, and in inspite of my Socially Conservative views, I might just be one of them. This party will not survive if it forgets its small government roots.
More likely they will join the Libertarian Party methinks -I can't see any self-respecting libertarian Republican (think Philip) joining a party that they have long perceived as being more in favor of big government than the GOP.