I think that the WT leadership may be changing it's stance on children. This is just an intuitive guess.
WT publications have been produced just for young folks since the 1920's. These were indoctrination books. And over the course of 90 years, the WT has discouraged parents from having planned pregnancies because Armageddon was just 'around the corner'. If anyone was around in the mid-1980's, this message was loud and clear in publications and from the platform.
With the recent development of children's videos, lessons, arts and crafts projects, etc., I'm thinking that the leadership has realized that kids are their main source of new converts. The new WT's message to young ones is 'candy coated' and 'happy, happy, joy, joy' cartoonie character perfect.
The WT leadership is also sending a subtle message to young couples : make babies and raise them in the organization.
With the help of the Mother organization, you can have a happy and rewarding family life...