Yep. I'm not looking forward to doing this again, so I'm gonna say this one more time...
Unless something radically changes with the rights for the original Halloween franchise (that includes the original film, its latest 2018 sequel, and derivative works from those two films), we will not be seeing it at Halloween Horror Nights. There are immovable roadblocks. It isn't going to happen. Nope. It's not happening.
We can get Halloween II (and therefore use Michael Myers in some capacity), but that's it.