I want to see the base game of Sims 5 pack in as many features, including traditional expansion features, as possible.
There are two levels to this:
1) I'm assuming a lot of Sims fans are probably getting sick of buying more or less the same things every time, not just for the money they put into it, but for how long they might have to wait for their favorite features to return. The Sims 4 launch controversy was related to this. Sims 5 would probably be hit even harder if that happened again. The Sims 4 still feels modern enough to not feel the need to upgrade if that means starting completely over.
2) There are still a million other things the Sims could do, both in focusing on any particular aspect of real life, or just plain making something up by drawing from fiction. In fact, you might even be able to get a lot more excitement out of expansions that provide something we've never seen before, than fans just desperate to get what they used to have back.
Of course, doing all those features at once would be quite the daunting development task, but they have all of the previous games to reference.
