In what way could a Generations pack differ from its Sims 3 counterpart?

Honestly I think that a world will be an important part of potential Generations pack. EA has enough money to create strong EP with a lot of gameplay, huge world, nice CAS and BB. We shouldn't accept any limitations. I expect a new world with big open areas for families. For example interesting playground for todlers and kids, open picnic area, parks ect. Something similar to Mt Komorebi, but with less fake textures. In this world we can have also school and daycare (as a rabbit hole or not).