They already released a short rules guide, but will also make a better version of the rulebook, and a how to play video. They will release a high quality file of a horizontal board to print out and replace the vertical one. And they are even adding a new game mode, Continuous Dream Mode, without those slumbers that some people so dislike.

I still don't plan to buy the game, as the theme of playing through my nightmares isn't really appealing to me. But I found the concept of "patching a board game" quite interesting. Some of the patched stuff will even become physical, because there is a second production and shipping wave. Note that the second Kickstarter of the 7th Continent had something similar, making an improved 2nd edition of the original game, and offering an upgrade pack to the owners of the 1st edition, so they got cards with errata on them. Of course, some parts of a game are easier to replace than others, cards easier than the game board. But it is interesting that in spite of the Kickstarter business model, in which the customers pay long before receiving their game, the developers still care to improve the game after release.