Wow, that's surprising. I wouldn't be surprised if LECOM fights it, but the AOA/COCA tend not to like LECOM, so I doubt it'll be an issue. UPMC may fight it as well, but as long as the school pays them a premium for rotations, it might still fly.
Duquesne has been talking about a med school for what feels like forever. Back in the stone ages when I was in college, they had a linkage program that I unfortunately didn't find out about until after I was already somewhere else. Sweet program, where if you maintained a 3.25 GPA and got a 27 MCAT you had an instant interview at affiliates like Temple and Drexel.
I think the school probably would do well though, because Duquesne already has strong PA, pharmacy, law, and nursing programs. It would have been easier before Mercy was bought out by UPMC, but I think if they are sending students to rotate at both UPMC and Allegheny/Highmark sites they might be able to support all the rotators. That said, with Hahnemann closing and LECOM-Elmira opening, things might be tight at AGH/Forbes.