Merely Replacement Goldfish?
Also worth mentioning, the Rockman Franchise does already have a couple Replacement Goldfish among it's ranks. Having the biggest impact here, Battle Network's own Rockman.EXE could very well be classified as a sort of Replacement Goldfish. Those who familiar with the narrative will recall that Rockman.EXE programing stems from the DNA of Dr. Hikari's dead son, Netto's twin brother Saito. (as hair-brained a concept as that actually is,..)
Also working against it, "Replacement Goldfish" as a theory carries a very ugly side.
It transforms Dr. Right into a broken man chasing the past in mad scientist fashion, and the goal of his life's work is a self-adsorbed fictionalization of his daily life. Not a pretty picture for the Rockman Series' fatherly backbone character. And it completely throws out the canonical established picture of Dr. Right as a visionary working towards a brighter future for the world.