Dragon Ball Super: What Happened to Gohan's Ultimate Transformation?

In trailers for Dragon Ball Super: Super Hero, Gohan is seen going Super Saiyan, leading fans to wonder what happened to his Ultimate transformation.

Beast, Dragon Ball Wiki

Revisiting Gohan's SS2 Transformation

Can someone give me the real reason why Gohan doesn't go Super Saiyan in Dragon Ball Super or will every one just throw a bunch of theories? - Quora

Gohan (Character) - Giant Bomb

Dragon Ball Already Explained Gohan's Beast Form And Why Goku Will Never Get It

So what happend to the ultimate form gohan said he well get? : r/dbz

Dragon Ball: 10 Best Gohan Transformations, Ranked From Lamest To Coolest

Dragon Ball Super: Super Hero Takes Gohan Back To Super Saiyan Status

New 'Dragon Ball Super' teases a powerful Gohan transformation - Bangladesh Post

Gohan, Dragon Ball GT Wiki

Why can't Gohan go Super Saiyan anymore? - Quora

All Of Gohan's Forms In Dragon Ball, Ranked By Power

Universe 18 - The power of my elders - Chapter 78, Page 1806 - DBMultiverse