The main thing that makes me think they would bring the original Creepshow rather than any other adaptation is that the original is really the only one anyone cares about. Creepshow had 2 sequels but they're never brought up, when people hear Creepshow they think the original, and having a maze based on the TV series before doing the original is just asking for confusion, because when people hear Creepshow, its unlikely a TV show that hasn't even aired yet will come to mind at all. Not to mention I don't think HHN has ever done a maze based on a TV series that hasn't aired yet that went well. Doing the Creepshow TV series alone without the original just seems like a really stupid choice in terms of marketing, especially with a franchise thats already as obscure as this, but thats just my two cents.