You're walking back what you said.
I may be right or wrong, but the rumored lineup for HHN 2025 doesn't indicate that Terrifer might show up next year.
This suggests you believe there is a rumored lineup of some kind that has some level of weight or that we know with confidence that Universal has locked some IPs. The truth is there isn't, really, at this stage. (The people who really know something at this point aren't saying.)
Most of us are making educated guesses based on what's current, event precedent, and other known factors (like who owns what). Terrifier is literally being discussed as something that is very current and potentially available. Before, I've dismissed this IP, but it's clear it's broken into the mainstream, so I wouldn't be surprised if someone (whether it's Universal or Six Flags or someone else entirely) goes for it.
All this to say: If you're going to make a bold, definitive claim, such as "Terrifier isn't part of the rumored lineup," you need to show your work.