I don't know! But I think it would probly be cool to load all submissions onto a usb drive each year, put it into a custom Famicom cartridge shaped enclosure and mimick one of those wonderful "300-in-1" pirate carts.
This is definitely a super cool idea! We could do also a collection here on itch.io where you can download all the games at once (if that is possible without much hassle and the file doesn't get too huge).
Yeah, since there's no judging and all, I think people would love to have some kind of "prize" for making a game for this jam. :) Apart from the sole fact that they were able to finish said games. Everyone loves having some sort of praising :D