My emails have still gone unanswered, but my wife was able to speak with somebody from guest relations today. Still not a whole lot of details. The bottom line is that it sounds like each day is structured like a typical day camp, regardless of age range / theme, and not every event during the day is necessarily tied to the specific theme.
For example, as explained, the Theme Park Creator campers (12-14) won't do theme park design activities all day long, and will go around to different parts of the park. The person on the phone talked a lot about visiting the animal husbandry operations. Campers will get to go on rides during the day. Additionally, once per week, campers will visit the water park.
FWIW. Still not enough detail for me to pull the trigger. Hopefully, they post more details as we approach Summer.