Are you sure you know what you’re asking there John?
So far KiCAD consists off a collection of symbols for a LOT of components and leaves it to the user to link them up with footprints of his/her choice.
You can mix and match where you see fit.
Any partnumber/datasheet/etc that would be defined by the symbol would also necessitate that the KiCAD librarians would need to create libraries for a lot more parts (some symbols stay for 10 or more packaging variants/part numbers) and would also need to pre-link the footprints.
I and a lot of others do this with our OWN private libs - defining atomic parts. It’s a lot of work and I wouldn’t want to lay the necessary quality control onto anyone else. YMMV.
That’s why I said, KiCAD gives you a choice - it’s serving the beginner/hobbyist as well as the more advanced/professional user.
But KiCAD won’t be able to do the necessary legwork to convert all current libraries that are into what you want - atomic parts.
If at all, KiCAD, at some point in the future will provide better tools to manage atomic part libraries, but that’s it.
For example this thread deals with it (there are others too, but can’t find them right now).