The board is very large as it is (one might even call it a design flaw). Not all tables have enough space for even the base game, and with more boards added I'm pretty sure I would need to go buy a huge ass gaming table just for Eldritch.
That said, I'd love to get more lite expansions like Forbidden Lore. The game is starting to be at a point where it doesn't really need more different conditions, only more baddies and characters and extra cards to already existing card piles.