Great, question! This is my first time hosting a Jam and hadn't thought that much about it! Thank you so much!
The main jam page is unclear about whether you'll be compiling the text of all submissions into a big hexcrawl, or just a sentence or two as overview, with a link to the relevant itch release for that hex.
The Combined World map will include "name of hex", link to original and author.
It's also unclear about whether you expect submissions to be free/pwyw, free just for the duration of the jam (so creators can check out each other's work, or whether attaching a minimum price is OK.
I think PWYW makes the most sense while the Jam is live, after however I'd say do whatever you'd like. Then again, min price is totally fine, it'll still be a part of the whole. (I'll be buying them all)