What if Superman shared the same universe as "Masters of the Universe"?
1987's Masters of the Universe w/ Dolph Lundgren as He-Man was Cannon's other "big" production of the year. It's generally believed that Cannon used a portion of the funds that was allocated to Superman IV for Masters of the Universe.
https://www.google.com/search?q=dc+universe+vs.+masters+of+the+universe+toys&biw=1440&bih=809&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiZ2fzeuu3NAhVBLSYKHfzUDcEQ_AUIBigB
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