Yes, Yes, and Yes! My friends and I would love to have fairies I really hope they come in their own pack though as a game pack cause I love how they took time with the vampires and spellcastors to give them a skill menu and level's. I would also like for the fairies to come with their own world where maybe houses are built in trees(or the illusion that they are) or at least in a very forestry/secluded place.
for skills they could have one for each element so that if someone wanted a earth fairy they could do that but also allow us to mix it up so if someone wanted a water and ice fairy they could do that.
I think if done right and if the sims team listens to our suggestions they could come up with a really fun and cool fae pack