NO on Palin and NO on Ryan. Palin is a Republican media commentator. Time to give that one up is long past due. And I don't want to repeat my Ryan complaints again here.
I answered your question here already:for The next Reagan see #33
Two of the last three republican presidents (Ronald Reagan and George W. Bush) were governors. I hope that, in 2016, the GOP nominee will be a conservative who has been a governor and has also been a U.S. senator or congressman. I hope that former Sen. Judd Gregg, Sen. John Hoeven, Gov. Butch Otter, Gov. Bobby Jindal, Gov. Nathan Deal, Gov. Sam Brownback, Gov. Mary Fallin, and Gov. John Kasich will run.