One thing i throught about while reading this post was when Cell and Gohan both did a Kamehameha, and they both hit and both energy beam started to grow into 1 mass ball of energy. Both Cell and Gohan were pushing it backwards and forwards as the ball was gaining more and more energy. Until the end were Goku spoke to him and made Gohan use his rage, telling him to kill Cell for all the people he has killed etc etc.
As in the beta when 2 beam hit each other you do a power struggle and force the beam backwards the enemy that cast it or if you catch it at an angle it will just hit when it aimed at when they both meet.
The point i'm trying to make, would there be a chance of having that power struggle like Gohan and Cell had at the end of the Cell Saga?
Not sure if this has been posted before, but it was just what i was thinking at the time of reading this thread.