They can't hide him forever-- not the way they hid Prince John. If that kid is special needs it's going to come out. They'd be better off disclosing it themselves so they control the story rather than waiting until the paps snap a photo or a disgruntled employee tells all.You just KNOW that if anything untoward occurs in this child's life that everyone else will get the blame.
It feels like they are building up to that already ... dripping these hints and keeping him super hidden and protected.