Will an Establishment or Insurgent candidate be nominated by the GOP?

[Hamster]

The establishment of the party, represented by folks like Romney, Rove, and the Bush family, are still searching for a suitable candidate. Meanwhile, the Jim DeMint-wing of the party is flush with money from the Heritage Foundation and Sheldon Adelson (among others) to mount a serious "outsider" candidacy. Is this the year that an insurgent candidate breaks the cycle, or will the 2016 be another coronation process?

[Hamster]

False dichotomy. All possible "insurgent" Republican candidates are, by necessity, also establishment candidates.

Was Santorum an establishment candidate? There seems to me to be a very clear divide between the Old Guard Republicans and the new conservatives of the Tea Party and Heritage Foundation.