Universal’s Halloween Horror Nights house reveals usually come in waves, and based on current chatter, the next one was being expected sometime in mid-to- late June rather than on a fixed public schedule.

What’s known

  • One recent report noted that HHN house announcements tend to come one by one as the event gets closer.
  • Another fan discussion from late May suggested the next reveal could land around a weekend event appearance, which is the kind of timing HHN often uses for hype.
  • By late June, multiple posts were already talking as if announcements were actively rolling out, which usually means the next theme reveal is close or already underway.

Practical read

  • There does not appear to be a single official “next house theme” date posted in the public material I found.
  • The safest expectation is: HHN tends to announce houses in staggered drops, often tied to convention weekends, summer promotions, or social-media reveals.

What to watch

  • Universal Orlando’s official HHN social accounts.
  • Theme park news coverage around weekends.
  • Major fan conventions or media events, since HHN often uses those windows for reveals.

TL;DR: There’s no confirmed public date in the sources I found, but the next HHN house theme announcement was being expected in the usual summer rollout window, with conventions/weekends being the most likely moments.