I think Dimentio is the unborn child of Tippi and Blumiere. That's why he hadn't killed them before the Super Dimentio fight. Because he didn't borned yet, if they die, HE DIES as well. And at the end of SPM I think Blumiere and Timpani teleported 3,000 years into the past The reason both The Pixl Queen and Dimentio has the power of illusions is because they are siblings. The magician that created the pixls had a wife, a son and a daughter after all. When Timpani and Blumiere sacrificed themselfs they went 3,000 years back to the past. They wrote down they’re entire adventure in a book which people started calling: Dark Prognosticus. But they didn’t knew if the worlds saved or not. They only wrote what they lived and because the rest are unknown to the authors people though no more pages means no more future. According to the game whoever the magician is created the pixls by studying the Dark Progniticus. And since the magician got his hands on the book and isn’t afraid of the book. Which means the author and the magician are the same person. And since Timpani is a human, the magicain must be Blumiere/Count Bleck. Which means both Dimentio and The Pixl Queen are Blumiere/Count Bleck and Timpani’s children.
Also, when tye Pixl queen fell, 8s it possible that she became the Shadow Queen who possessed Princess Peach in TTYD? Idk if that's Canon, but it's my headcannon
