I’m not convinced he won’t so your question is moot.
Yes, it's sort of early in the game, but this is a completely different electoral season than I have ever seen and I've been closely watching this stuff since childhood.
I wish that Cruz would catch fire, but he has been "Palinized" by the MSM and the GOP-E for so long, that to change people's minds now, is difficult for him to do; I fear.