No, I'm not. I've never heard of anyone named Mysterio except for Rey Mysterio, Jr. MCU already has Dave Bautista so it's not disingenuous to think that they would get Rey Mysterio. Jr. too.
He's a fan favorite and one of the most requested Spider-Man villain. Infact Before Sam Raimi split with Sony, Mysterio and The Lizard were the two most wanted villains for Spider-Man 4.
