Settle scores, takes no prisoners.
He sees himself as the leader of GOTP through 2020 so he's firing up the base to start. Next he'll get Ryan out and put one of the Freedom Caucus in.
Even if House flips, it doesn't matter; it's no longer about winning, and was never about governing. It's about adulation and power. Reince can stick around if he behaves.
He'll then have his cadre in place and try to remake GOTP as he sees fit.
Couldn't happen to a nicer party.