I agree that SSJ4 needs to come back in some form and make it matter in the current power scaling. I don't care what it's called as long as it looks like that.I don't know what extent they would go to in order to actually introduce some of the concepts but I have a feeling at the very least, we will see Super Saiyan 4. I just hope they rebrand it in Super as I said - Call it Saiyan Primal or something similar instead of putting a number on it. This way the power level is set apart.
I did think it was weird how the age differences in appearance were wrong with Pan and Bula. I feel like they confused the time periods in which both were born.
Fur is murder!as long as it looks like that.