Usually I'm not calling it diversity or something specific, but I always love having more options in games. A larger world than a smaller, if both are same quality, just zoomed out empty doesn't count. Having variety in not just looks but almost everything is a dream that we likely won't have, not with current tech. Maybe if we could live 1,000 year and stay young and healthy.
Now we have to set a limits in expectations and there has to be a balance between quantity & quality, because feature creep can kill a game, unless they have a backing like Star Citizen. That's up to devs and managers/directors and so on up to the chain. If the project didn't include something, that may not get in, because has to be limits. Even if that something is good to have. Maybe for the next project or some add-on. And mod content, that's a great way to give without the need of extra time & cost, if mod tools can be made.
