Just as expected, by arrogantly giving Moro a Senzu Bean, Goku has lived to regret his decision, just as he did against Cell. Also, just like what happened with Cell, Moro looks as if he is about to take the Earth and the entire universe with him in a massive explosion. Good one Goku, glad to see you learned from your previous mistakes.
Now, in Dragon Ball Super manga chapter 66, we will see Goku having to finish off Moro but that would also mean destroying the Earth, as Moro has now become one with the Earth. If Goku doesn’t do this, as Whis explained, his body (the Earth) will not self-destruct and take out everything surrounding it, as well as possibly the entire universe.
Therefore, traditional fighting methods are out of the question. What needs to happen is a form of destruction that will not cause a massive explosion and wipe out everything in existence. Aside from the Zeno’s coming in and erasing everything like they did against Zamasu, this can be accomplished through the Hakai method, which God of Destructions can use and Goku has been seen using in the manga only.
However, I doubt that Goku can actually destroy the Earth even if the universe was threatened. Therefore, this is where Beerus comes in. yes, Beerus has be-friended everyone on Earth but he won’t be held back by sentiment like Goku will. Beerus knows what he needs to do and won’t hesitate to do it.
Another who may step in and do what’s required it Vegeta, who I assume has learned the same technqiue, as he has received the some god training as Goku. If Vegeta was to destroy Moro and the Earth, it would make this the first major villain that Vegeta has actually killed since the Ginyu Force members.
For now though, we will have to wait and see if any of these predictions actually happen when Dragon Ball Super manga chapter 66 is released on the 20th of November. Meanwhile, official spoilers and manga leaks will be revealed in the few days before that.