It just depends on your interests. You might never want to play with Witches. I'm greatly looking forward to them for my gameplay though. I tell stories to myself while I play and want as much variety as I can have to do that. I like to have a multitude of character options and storyline possibilities.
I want to play out characters inspired by some of my favorite types of Witches in movies and tv shows.. Practical Magic, The Craft, The Witch, and American Horror Story: Coven. I want and am hoping for variety in what we create so we can have stereotypical types of witches as well as those that don't fit into that neat little box that people tend to see them in. I'm also influenced by games I play that include using alchemy and spells and even experiences and stories I've heard in real life.
For now I want witches so I can have Olive Specter use it in some way (she was a character that originated in Sims 2 but I remade her in this game) She wasn't a witch then but I can definitely see her using potions, curses or spells to fill up that huge graveyard she has. I also have another sim I want to create depending on what is included in Witches this time around. All I know is that if Witches is done as well as Vampires was for this iteration I'll be overjoyed.
It may never be something you want though.. and that's okay. It's also okay for others to want it.
