This is what I think is going to happen. The vast majority of GOPe simply do not have the strength of character to stay a philosophical course. Of course it doesn't help that they have no philosophical underpinnings save personal aggrandizement.
Interestingly enough, by bending their knees to Trump, they'll wind up following a course much closer to the ideals their party espouses.
Sad that they'll only do it as worthless toads and sheeple, but what the hey - it's better than them following the current occupant down the Socialist path.