I hope we get open worlds in this game.

Yes, the fact that they were able to create what The Sims 3 is on an outdated base just shows what can be possible on an updated game engine such as Unreal Engine. I still play TS3 to this day and I still love it. Once you know what it's like to be able to play life in an open world, it is hard to go back. If the team knows what's good for the franchise, then they will incorporate open worlds or neighborhoods in the next game. (btw I was stating that it was an outdated engine to show how even on an old engine they were able to create something amazing. I meant it in a positive light).