I asked my friends here at work who are big BYU recruiting "experts"* and got some more information.
He has been wavering for about 4 months. Apparently, he committed way, way early to BYU, and over the summer even burned an offer letter from the U of Utah. Recently Oregon and Washington have made in-roads with the pitch, "You decided really early, before you got to even see what other schools offer. You should at least visit our school to see what other schools can offer."
He is LDS (mormon), but that doesn't mean he won't go elsewhere. My friends didn't know if he was planning a mission or not, which can often be detrimental to the development of lineman, because you don't have daily access to a weight room for those 2 years.
After talking to my friends, I'd say about 45% chance he stays with BYU, 25% Oregon, 25% Washington, 5% somewhere east of Colorado. But take this with a grain of salt, neither my friends nor I have talked to Brayden personally.
*These friends are like some here who hold season tickets, read all the message boards, and then assume they know what the kids are thinking. They know much more about BYU football and recruits than I do, and watch all the highlights of recruits, that's why I post the info and think its relevant.