I say no in answer to the OP, as the current model exists. That’s why it will change. You can already detect the shift. The GOP (my party) recognizes that the current formula won’t work and that the brand has serious issues.
Romney had to out-conservative Perry with all that “self deportation” stuff to survive the primary, then couldn’t tack back to the center and lost 70% of the Latino vote (as an example). He was on the wrong side (from Ohio’s perspective) of the auto bailout issue. These two items by themselves were the only positions Romney could have taken to not be dismissed by an unconvinced base, and those two items by themselves were enough to lose the election.
We have to find ways of fixing the brand, and that means showing people that we actually care about their concerns. The Dems kick our asses at appearing to feel people’s pain. All this “party purity” is silliness in politics–and I’m not suggesting we become another Democratic party. But we can’t start by making people think we want to deport their grandmothers. There is a great argument (IMO) to be made that keeping Medicare and SS viable is only possible with reform. But nobody listens if it sounds like the basis for the reform is to “take back from the freeloaders.”
I believe right now that the only candidate that can survive the primaries is someone who won’t win the general election. The demographics show it’s only getting tougher. The good news? That’s becoming blindingly obvious to all, and survival instincts will force us to change the formula.