This is a great idea. I am doing my only little part toward this with a series I am writing for fun based around just one character. More of a narrative within the lore but it draws from some parts of the encyclopaedia to build out the setting a society.

I just wrote the second part today if you fancy a read: @joesetsfire/tales-from-the-splinterlands-2-a-secret-revealed

Good luck with whatever you decide to do and if you want to collab, let me know!