Forma Selvatica del Druido e Cambiare Forma (capacità speciale di alcune creature) provoca un attacco d'opportunità se effettuata all'interno di un'area minacciata?

no non li provoca

E nel caso ci fossero dubbi, basta leggere il manuale o l'SRD alla voce sulla forma selvatica:

Wild Shape (Su)

At 5th level, a druid gains the ability to turn herself into any Small or Medium animal and back again once per day. Her options for new forms include all creatures with the animal type. This ability functions like the alternate form special ability, except as noted here. The effect lasts for 1 hour per druid level, or until she changes back. Changing form (to animal or back) is a standard action and doesn’t provoke an attack of opportunity. Each time you use wild shape, you regain lost hit points as if you had rested for a night.