I seriously doubt it will. I’m literally getting flashbacks to 2010 when Potter was about to open! I recall seeing this same question on the forums back in the day!
Although Monsters Unchained comes across as a “high risk ride” for its scary nature, I seriously, seriously doubt it will go upside down. Besides, we absolutely would’ve heard by now if it did.
Also, if FJ made a lot of people sick, and that is the tamer version of this ride system, why would anyone think it’s a great idea to jazz it up to 50 and make it unridable for more half of the park? So yeah, I can almost guarantee this won’t go upside down. It will just be a slightly snappier FJ.