I can see both sides of this argument working but I'm leaning more towards the Torrances being in the house and here's why.
Firstly, how can you have a Shining house without any of the 3 main characters? It's not like Walking Dead where you can get away with just zombies, or ghosts in this case, because while the Shining is a classic film I don't think a lot of the younger generation has seen the movie. The only things I think they'll recognize are the Grady Twins and the "Here's Johnny" scene.
Secondly, the official YouTube videos for both parks clearly mention them in the descriptions.
Orlando: "Face the tormented Grady Twins. Experience Danny Torrance’s blood soaked premonitions. And it’s “all work and no play” as an axe-wielding Jack Torrance pursues you through a snow covered hedge maze. This legendary masterpiece is now the most terrifying haunted experience imaginable. This is “The Shining”.
Hollywood: "All work and no play makes Jack a dull boy. This fall, for the first time ever, The Shining is coming to Halloween Horror Nights at Universal Studios Hollywood and Universal Orlando Resort"
And finally, Jack Torrance makes 2 appearances in the announcement trailer. If there was such an issue with character licensing, no matter how recent, I doubt Universal would have just released it with the Torrances still in the video AND the descriptions for BOTH parks. Is it possibly, yes. Is it likely, no.