Obese of any age 12 up will be eligible for booster, as will diabetics and those with all the other comorbid conditions.
It also will include health care workers of any age 12 up as well as those with high occupational risk such as teachers and first responders.
The only portion of the population excluded will be under age 65 with no comorbid conditions and no high occupational risk of exposure. My guess is 25% to 30%. Maybe even lower.
FDA will not disagree with this advisory committee. It gives them cover to slap Biden in the face for overstepping (onto FDA's lawn) his bounds. FDA will gleefully give Biden less than what he said was coming. When Biden gets pissed off at that, FDA merely says it followed the advice of the INDEPENDENT committee of experts.