Hi lads, we're getting closer to a very nice world generation with the oceans from Return Of Them, don't you think ?
But have you already set your attention to the fact that Don't Starve is a 3D game ?
We have 3 coordinates, and Y is the height, it is of course used a lot for various operations in the game scripts but this is not directly impacting players experience a lot since we are always on ground (or water but it's on the same level)...
Now you may wonder why I am talking about this ? unless you've read the title
Well. Maybe the next step of the world generation could be to use the world height ! We keep the default height for the majority of existing biomes we knows at : y = 0, and some new varieties of plateaux like mountains equivalent of forests and plains and other unique environments.
Look at this and try pretending it's not cool :
Now for players, I think it could be fun to manage climbing over high plateaux with various items and structures :
For example, if the biome plateau next to you only have a 0.5 difference on the Y axis from your current plateau, you can jump like if you wanted to go on your boat. You know, we play athletes that can jump over 5 meters so it's fine for Wilson, don't worry about him.
But if it's higher than this, maybe a springboard, stilts or just ladders could be added for this new game mechanism.
(Also, I don't know if it could be possible to make negative height biome unless they only spawn on middle to avoid water, or either it will have no sense or sink.)
Okay that's pretty much it, this is just an intense suggestion to the devs going through there 
and for you if you want to discuss over it, even if I deeply know that this is game-changing (breaking limits is good sometime) and that it sounds like a lot of work... but if applied to a very new set of biomes among the current world we know, this new perspective can be the most beautiful thing this game have ever made !