The two houses will again be open Sept. 26-27 and then from Oct. 3 through Nov. 1.
Premier passholders can register for a preview on Friday, Sept. 18.
The rumor was reported by WDW News Today, a site which once said it was "at war" with the Walt Disney Company.
This is the second round of layoffs at the resort since it reopened in June.
“I know this news is disappointing especially because this year we would be celebrating HHN’s 30th anniversary,” said Universal Orlando Resort president Bill Davis.
The layoffs at Universal Orlando affected multiple business units, though the resort did not say how many workers were being let go.
Team members have been invited to see the show at Universal Studios Florida on Saturday and Sunday.
When Universal Studios Florida opened 30 years ago, roughly 1,000 guests demanded refunds due to rides going down.