You say "yet another fire type" as if Charizard wasn't the only one we have. ....and go and suggest Arcanine. "Yet another" Fire type.
And Salamence, who is basically a stereotypical fire-breathing dragon.....just like Charizard.....
And Dragonite....who while is ironically less of a stereotypical fire-breathing dragon than Salamence, is much more like Charizard in design and concept than Incineroar ever would be.....
And while we're getting types into this, since apparently a second Fire type is a big deal, you suggest "yet another" Grass type and "yet another" Psychic type (one which would actually have a similar fighting style to Mewtwo, when you get down to how Alakazam works).
....yeah, methinks you didn't think this through.