It's because they are doing it as the very last:
"Hi
Thank you for contacting us with your question.
When it comes to scheduling future expansions, we are currently hoping to release Blood Moon early next year.
As for the Dragons expansion we haven't got a planned date for that one yet as we're going look at doing the other expansions first.
Hope this has answered your question
From
The Nomad Games Team"
Well, at least this is sort of confirmation that Blood Moon is coming next, and relatively soon.
But seriously, I don't understand all of the animus against the Dragon. It has one of the coolest themes in the game-not one- but three unique dragons fighting each other as the game progresses and in turn claiming plots of the land as their own. The dragons help boost characters faster and there are lots of goodies among the three decks. Drawing tokens really isn't that big of a deal IMO, and methinks this fan base protests a little too much.
But yeah, we are likely not going to see Dragon for 2-3 years. But hey, Halloween comes during Spring next year.