I completely disagree with your premise. There is nothing lazy about it. It's a question of resource allocation.
So since they allocated the resources they did to get us to where we are, what would you cut out of the current game to reallocate for a day/night system? Same goes for people who don't want a static camp or want 6 party members. What are you willing to give up for that? I think a day/night system like #3 would be cool. I think a dynamic camp would be cool. I think 6 party members would be cool. But at what cost? Would I rather see those and only have 4 classes right now? Maybe no subclasses? I don't know what is an apples to apples comparison of resources. But to call it lazy as opposed to a deliberate choice of how to allocate a finite set of resources is absurd.
I swear, sometime I get almost the impression some you people take genuine enjoyment in shitting on someone else's thread and purposefully derail it away from what's the explicitly stated purpose.
This is all stuff we already discussed elsewhere and that I made perfectly clear in the opening post I didn't wish to repeat here.
BUT since there seems to be no way around it, and since you are asking: there's a shitload I'd gladly "give away" for some of these features (even pretending to ignore the disingenuous attempt to suggest that raising the party limit to six would be a massive undertaking).
First of all? A feature that arguable takes more work of all these things combined while adding a lot less: "playable origin characters".
I genuinely don't give a shit about them and the effort necessary to implement each one of these could have been better used to not make the world feel like a (pretty!) crampled cardboard setpiece frozen in a single instant in time and where everything is three steps away from another thing.
Every origin story playable both in third -as companion- and first person perspective - as protagonist- plus the eventuality that each one of them may be fully voiced in the end? Talk about wasteful. I could appreciate something like this as a fanciful bonus on top of a game that already nailed its core set of feature, not on one that is giving up most of what makes an adventure feel immersive.