Given the pattern of the latest EPs I just can't see fairies being added in this pack.
*If* assumptions of country living (I'm deliberately keeping that vague) and garden markets are correct then there's a lot to pack in there and personally to me adding on fairies will end up diluting the pack and I'm guessing they don't want to draw attention to how lacking Island Living was let alone that Realm of Magic was a flashy dud of a game pack. If Gardening is a main feature then I can see Gnomes/Plantsims getting more functionality....
Each to their own and as always I could be 100% wrong here! After all I was convinced they would have at least added a stylist carreer to Dream Home Decorator. ??