Minions/ DM has been hot for 13 years now. It’s the safest bet you can get that isn’t Potter, Star Wars, or Marvel. And unlike Potter, Marvel, Transformers, Simpsons, or Spongebob, Marvel controls the whole kit and kaboodle.
What really defines the modern media-scape is the studios’ reliance on a very limited number of IPs with long, proven histories. No franchise with a track record truly disappears. If a Minions or DM film stumbled at the box office, the IP would see a couple dormant years and would then be relaunched - witness Shrek, a long-dormant IP that just put out a critically-acclaimed (and genuinely great) semi-relaunch. Minions is with us for the foreseeable future.
Previous management bears responsibility for Minion Mayhem, but that space is designed to have the IP switched out. It seems like an obvious choice to switch out the film for some other property (or close the aging attraction entirely as part of the anticipated entry-plaza redesign) and give Minions a custom build in the big KidZone space.