No,He has said it is way to early for that.If he announces early that would affect his duties as RSC chairman and the cynics would question his every move(which are many) It is best to fly under the radar for now and build a base.Garfield and Lincoln both went from the house.
Lincoln had not been in the House for over 15 years, and Garfireld was Speaker. Lincoln had the advantage of a FOUR way race that allowed him to win with 39% of the vote. We won't have that this time.
I like Pence, but of the papabile, I would go with Brownback, and then Allen.