Yea, the actual structure of how things work is still unclear, and could make a huge difference on the overall experience.
Like, because these planets are fully traversable(according to Todd), there needs to be something to find/do if you wander out and you cant handcraft the thousands and thousands of locations and whatnot you'd need to achieve this. So it kinda sounds like they're gonna have a large selection of handcrafted 'content' that can be procedurally implemented onto a planet to find, probably tailored for specific environments/biomes or whatever? But if so, then that raises the question of how much of this content you can actually encounter in any one given place. Like, if I just spend all my time on a single planet, will I experience the vast chunk of content that they've created for it, or will it reserve content for when I leave and go elsewhere?
I kinda feel it would have made more sense if each planet was not actually fully traversable and only had like a limited map to explore for each(kinda like Mass Effect 1, but a lot better). This way you could still offer plenty of exploration but also more tightly knit handcrafted content and all.