@akaseven I think we'll still get Bigfoot/Yeti on that snow mountain pack, maybe genies on that supposed Music/Bands/Showtime EP, Unicorns when they release horses somewhere, plantsims if we get a Farming EP, Imaginary Friends most likely than any other as it was one of the top occults on Grant's poll some time ago, Fairies too, and Werewolves. I don't think most of them will get detailed game packs like Vampries and Spellcasters... Fairies and Werewolves probably, and maybe plantsims, but the rest of them we should expect the same fate as aliens, ghosts and mermaids. Don't worry, we still have a couple of years of Sims 4, cuz a couple of simgurus already stated that clearly.
