I recently found out that Munch Bunch yogurts were originally a cartoon, but not in the "Fred Flintstone promoting vitamins outlasted the Flintstones show" sense, but rather that the yogurts were originally a corporate tie in, kept the mascots after the show ended, and then replaced the mascots WHILE keeping the name???
And I'd personally like to keep Jigglypuff because I like keeping the Original 12 intact.
But I'd be happy to swap out all the other Pokemon and not have any of them be starters.