I think it was Andy that did mention that there would be Kid flashbacks. I still wanna see the IT baby scene that wasn't included in the first film.Sometimes when scripts get leaked they get changed or they have already been changed and that's why they were leaked. Chapter 2 might be grueling to watch though if it's just the adults. In the 1990 version of It the children's portion was way more interesting than the adults section of the film. Hopefully they split it into flashbacks and show some of the more interesting parts we didn't get to see in Chapter One.