Fusion with Potara Earrings is a fascinating thing in the whole Dragon Ball series. Not only will it be able to introduce another character, but the fusion character will also be similar to the base characters. And not only that, every fusion character defies the law of power levels (if that thing still exists) and can even surpass a God of Destruction.
Goku needs to beat Kafla because if he did, it will give him two good things. The first one is that he will recover his stamina by fighting (I still don’t know that method works, but since it is working, I can’t really complain). The second one would be his double elimination of Caulifla and Kale. In a sense, Universe 6 is in danger with this fusion.
But in the meantime, Goku will be in a helluva lot of trouble in the next episode. The birth of Kafla is proven to be a pain in the neck for the Universe 7 ace warrior. Kafla is expected to be a powerful warrior. And during their fight, Goku will be helpless and will be cornered to tank all of Kafla’s attacks as per spoilers from Todd Blakenship.
Because of being cornered, Goku will be forced to transform into Super Saiyan Blue for the first time. I think Goku would be in the desperate situation since Blue cannot even gain an advantage on Berserker Kale alone. What could it do against the Super Saiyan Berserker 2 Kafla (or something like that)?
The only thing that I can think of as a good omen for this fight is that Goku will be able to get his strength back. The last episode has shown us that Goku cannot still hold the Super Saiyan 3 transformation on his state before. But in this leaked image, it shows that Goku is actually gaining strength in the fastest pace that he could through battling. He can now turn into Super Saiyan Blue.
Which could mean that it could only take a few more episodes for us to see the ultra instinct again. It is still not sure if Jiren will actually wake up and stop Kafla. But if he did, then we might see the rematch that we have been waiting for. Jiren will finally see the complete version of the Ultra Insticnt. I personally think that Goku VS Kafla will bring drastic changes in the Tournament of Power.