A character I think would have a really interesting effect on the speculation scene is PaRappa the Rapper. He is, in my eyes, the one character who would most clear as day illustrate "Smash is no longer just about Nintendo." as not only is he owned by Sony with no Nintendo appearances, but there is also a relatively popular Nintendo IP with the same genre and a similar aesthetic to PaRappa. PaRappa would also break a lot of Smash fans out of the console war trance of Nintendo being the "only innovators" and "the only ones who don't make gritty shooters all the time" given how historically significant PtR is to gaming and its cute, silly style.
