As a longtime Starfox AND Metroid fan, let me just say that these rumors had better be 100% FALSE. Why? Because it would be a goddamn TERRIBLE idea. That's why. I want a new Star Fox, a REAL Star Fox, a REAL honest to god sequel to SF64, with NOTHING but vehicle based "on rails" space shooter action, MOSTLY having to do with the Arwing (maybe a couple tank/whatever as long as it's not walking around levels). That's what I've wanted since Star Fox 64, over a decade ago. If it's true Retro is doing SF, they better not f*** it up with something retarded by "hey let's put our own 'unique' spin on it', or "HEY, let's mix it with the Metroid universe, cuz that'd be SUPER AWESOME!".
No thank you. Just give me a GOOD Star Fox. For Wii U. That is all.