Each school is a bit different…but
Most of the “options” will be around the sciences…and swaping a few AICE classes for AP classes.
He likely will need to complete the math cycle up to AICE Math. It’s his senior year when he’ll be able to choose between AP Calc AB, BC, etc.
He’ll be taking the AICE English classes through 12th grade. They do a great job of preparing him for the SAT/ACT, and will earn him college credit at the public universities in Florida.
On the sciences. Other than the “pre-aice” classes, they will have an AICE Physics, Chemistry, Biology and maybe Marine Science. Marine science is by far the easiest. However, he’ll have to pick at least one of the others (and he should for college admission considerations). Based on how he does in the “pre” class, he should pick one. If he wants to apply to a very selective college, like UF, he should pick two out of the three (Physics, Chemistry or Biology).
AICE can be a rigorous program, but it will prepare him for college and the standardized test (ACT/SAT). It will also allow him to earn 30 to 45 credits at the Florida Public Universities. And of course, the full Bright Futures ($$$). Not bad. 
Both of my kids earned AICE diploma’s and got into UF. They both took a “study hall” like class (“leadership”, or some such thing) that was a “standard” classes and didn’t count toward admissions, but it didn’t hurt their applications. It’s ok to fit in a “standard” elective (my daughter took journalism and worked on the schools paper, my son had a “gifted” class), into the mix, to lighten the load a bit. They don’t have to take 100% AP/AICE/Pre-aice/honor classes.
Good Luck!