If goku ssj4 and supes prime fused via earrings

Do you guys think that they would become the super watchers of the galaxy? what do you think they'd do? Do you think their body could hold all that power? What do you think his powers would be? Kamehameh-lazer blast? Do you think the battle board would be full of fights between him and dc and marvels top dogs? Why do u think they"d have to fuse? Should they make a amlagam of him, what would he look like?