New devpost:
NA1) Halloween event details are up. The previously mentioned pumpkin furnishings appear to be buyable from npc vendors, with something special happening after the event ends if you have all 3x in your moghouse. (Likely you get the large pumpkins that they hinted at being available at some point too.) Spectral Chair mount will be available from NPCs "dressed up" as Cyhiraeths. ._.;; How someone "dresses up" as a funky floating head thingy, I don't know.
Event Period: Tuesday, October 24, at 1:00 a.m. (PDT) to Monday, November 6, at 6:59 a.m. (PST)