Sorry for the disappointment, and I believe and hope the release will satisfy you. Regarding the additional content, did you mean the special rewards? Expect the in-game credits' names because we haven't collected them yet; the other rewards will be released at the same time as the game.
Concerning Dik's Journey rewards, I wonder if there is a mistake because the rewards for the Early Birds have been sent, except for the in-game credits' names, main character's name, and avatar. The dev guy we were collaborating with dropped out, so we have to handle these aspects ourselves. We are managing the entire project independently :D