I would love a remake of TS2 with only two changes: open neighborhoods and story progression with a functional toggle for those who don't want it.
The main reason that TS3 is my favorite game of the series is that it had story progression and an open world full of Sims that were doing their own thing. In TS2, I disliked having to go around to families that I wasn't interested in, making them woohoo to have babies, or aging them up to keep the neighborhood on the same timeline. I have never liked having full rotational gameplay. I prefer to play one extended family along with some of its branches. I'd rather that the rest take care of themselves and surprise me with the outcomes.