And I know it means very little, but on the tickets page for HHN when it says "will return Fall 2019" it says "The thrills continue with our exclusive Terror Tram experience on the Universal Backlot..." I think that shows they have high stock in this attraction and that it's not going anywhere, even if it's a standard copy-paste page they had ready for every year, they still listed that first and foremost. I know it tests really high for tourists who are coming from out of town and have never been to Hollywood before. In a way, it's HHN's version of the Studio Tour, for guests to see some really famous movie sets, and without the Studio Tour, Universal is essentially nothing. At the end of the day, it's the tourist HHN will cater to, because those are the ones who will spend the most money on tickets, merchandise, and food. Their satisfaction is key. When locals completely deplete (and it looks like it's still just getting more popular due to Stranger Things), maybe then they will think about changing it up.
Speaking of Stranger Things, did anyone happen to get a video of the lights on tour?! I feel like that just went over our heads on the forum.