I don't know if we'll get preteens or not. I also don't need if we need it in game. I've played infants since we got those in March of this year and idk what it really adds in terms of gameplay. It's another lifestage where we don't get a lot of CAS or gameplay to do. Like the last 2 packs (Horse Ranch EP and Home Chef Hustle SP) only added 1 CAS item for infants and no gameplay at all. Infants cannot cook (obviously lol) but they also can't interact with mini sheep, mini goat, or horses. Toddlers can only do a little bit. Also no new infant furniture (with the exception of what came with Growing Together).
If tweens are added, I'd like to see some gameplay come with them and them to be included when it comes to CAS/BB in future packs. Will tweens be able to use the active high school from High School Years? Will they have unique social interactions?