With Beast for Gohan, it does feel like the character's final step in achieving a new form entirely all his own that blends the hidden explosive rage he's had all his life with the ferocity of Super Saiyan 2 and deeply expansive Potential Unlocked of his Ultimate form, crafting a sorta evolved trinity of all three dormant elements of him.

This is why the form will in all likelihood be unique to Gohan, one must have that deeply hidden explosive rage, the capacity to reach at least Super Saiyan 2, and Elder Kaioshin's bestowing of Ultimate Potential Unlocked with the yearning to tap into something "new"/"different".