Question: why no ssj4 in super?
Answer: Couple of reasons: SSJ4 is a form that requires Goku and Vegeta to grow back their tails. Since that isn't happening any time soon, they can't access SSJ4. Broly's Wrath State is a direct homage to SSJ4, as he is as strong as a Great Ape, yet is still in his base form (which is what a SSJ4 essentially is).