I like the idea of having different packs being based on different cultures and in different parts of the world, like with Snowy Escape, Island Living, and Cottage Living. I have a save file where I try to make each world a different country, and there unfortunately isn't a lot of in-game content I can use to create those authentic environments. But with these packs, I get to do a lot more, and it spawns great CC for whatever Maxis can't squeeze into the pack.
Outside of that save file, part of the fantasy when playing the Sims is being able to travel anywhere and do anything. So sending my Sims to Mt. Komorebi for a day of skiing and then relaxing at the onsen is perfect. If the team can continue to weave these cultural elements into different packs, I would be pretty happy with it!
I'm also a huge fan of the updated skin and hairs, so I say keep them coming! They help with representation, but it also brings some of the older base game hairs up to speed with the newer technology. I don't use some of the old hairs just because their textures are so bad compared with what we have now.