I wonder about the venues that they'll choose. Mariah is definitely still in good standing to be able to do arenas, but hasn't always been one to do large tours, and the boxscores from the Angels Advocate Tour show she wasn't filling up those venues even when they were weren't used to the full capacity.
I think that they would be smart to either keep ticket costs lower (maybe $130 for the first half of the floor and lower bowl closer to the stage, $95 for the back half of the floor, $75 for the remaining lower bowl that's perpendicular to the stage. I dunno if it would even be worth it for them to use the upper bowl. But if they didn't I could see them raising the price a little because the show is so Elusive