Megan and Black Phone in a maze would feel like a repeat. We've had both in several forms. It'd just be the same stuff all over again. I'd prefer it on a throwaway Tram, which is either 80% crap or 20% a nice surprise anyway. If it's all new on the Tram, great, cool. If it was all new in a maze, it'd be "eh, cool I guess." My standards for a maze are much higher than what I expect for a Tram.
Granted, Tram was my favorite thing last year.