The first Ring was a massive hit, the crappy Ring sequel that no-one liked still made 160m, and the crappy legasequel in 2017 still made 80m. Even if there hasn't been a movie recently, it is almost certainly a bigger property than something like Trick R Treat. It's not as big a property as, say, The Conjuring, and it's not particularly easy to turn into a house, but I assume that it'll be on the list when the inevitable Ringboot happens.