TBH I never really felt that UCM would come back for 2019. Nothing against it at all, as it was one of my favorite mazes last year. I just always felt that it was a property that John respected so much that he wouldn't want to potentially drag it out year after year (like Insidious, Walking Dead, and Purge), and end up making it feel stale. Sure there's a lot he could still do with it, but I really feel like if he's going to bring it back, it wouldn't be so close to it's 2018 debut where people will easily nitpick it and fault it for potentially not living up to the previous year's execution.