>>3995468Many would probably continue to be fans of both Gaster and Mystery Man. Alternative fanon Gaster designs have been a thing for ages, and any new design by Temmie would probably be normalized easily. Even if Mystery Man were not Gaster, he as a character would most likely still be mysterious and Gaster-like as he has always been. There were two times Mystery Man was featured in merch and both times ended up with him being removed completely. Apparently not even Gaster’s followers got that strict of a treatment. The few things known about the Mystery Man sprite point to him most likely being or having connection to Gaster, and that association has existed for so long (over a decade) that not only is it unlikely for Toby Fox to reverse course, but it’s not implausible that the fans and the fan contents could survive deconfirmation. It feels like Mystery Man/Gaster has his own self-sustaining fandom similar to the Undertale AU fandom.
