Some of the things on that list is just speculation..maybe like 10 or so.
I'm still considering pre-ordering it, some of the stuff on that list is stuff I never actually used.
I think it would be best to think of the Sims 4 as a Re-boot of the series. Starting from scratch and this time probably going to focus more on the Sims themselves and gameplay than the features. There's not a lot of detail because they want it to run on lower-end to computers, the more people who can run it the more people who'll buy is basically their idea. Toddlers in the Sims 3 were loving annoying and I usually just aged them up to children. Babies had little to no interactions and my sim would just leave them on the ground. Pools I just used for decorations. Everything else that is gone is nothing but a small feature to me. In the Sims 3 sims moved like robots, and there were maybe 5 or 6 Sims on a lot if you were lucky.
In the Sims 4, you actually have more sims to interact with. Loading screens only help this, since you only have one section of the world loaded at a time and thus you can load more sims. I don't know if this was just me, but the Sims 3 lagged like a mother forgeter whenever I played it.
