Here's the problem with the whole "Pre-Teen" thing, toddlers took two years to create. So imagine how long this new lifestage would probably take, now I could be wrong, & it's already in the works, but if not then we may not see them for awhile, I remember in S3 they did surveys like they're doing sometimes with S4, some things on the survey don't make it to the game, & are transferred to new installments; we may end up seeing "Middle-aged" kids in S5, not saying that's what's happening, but I'd just be aware of that. But on the positive, they might tweak the teens already in game, that's something to look forward to, that's what I'd like to see, but as for a whole new lifestage ..I think it's best to have a realistic expectation.