Vegito's return was confirmed by previews of episode 66. What viewers might have missed was the flash of his technique.

Spoilers were posted on Twitter that contains a summary of episode 66. The information was found in a Japanese magazine by Todd Blankenship, a known Dragon Ball follower, Attack of the Fanboy reported.

"Dragon Ball Super's" next episode is entitled "Showdown: The Unyielding Warriors' Miraculous Power." It is slated to air next week and will feature the beginning of a deathmatch between Super Saiyan Blue Vegito and Merged Zamasu.

The complete plot was not revealed, however, it hinted at a small portion of the story. It said that Goku had launched a life-risking attack which breaks Merged Zamasu's ring of light. It went on, stating something strange will happen to the latter following those events.

Fans speculate Goku's attack to be the Kaioken amplified by his Super Saiyan Blue form. This technique is extremely strenuous to the user's body and is potentially life-threatening when pushed beyond limits.

Going back to the preview, it shows Super Saiyan Blue Vegito performing a familiar attack. "Z" fans were quick to note that it was Vegito's Final Kamehameha. It is a move combining Goku's Kamehameha and Vegeta's Final Flash attack. However, as a reminder, Merged Zamasu is immortal and most likely be able to withstand this attack. What could happen is it stuns or weakens the villain creating an opening for Vegito to the end to the fight, Blasting News reported.

However, fans are not convinced that Vegito's return will be without surprises. Previews are only meant to give a taste of what is to come. Vegito will come back turbo-supercharged as a Super Saiyan Blue. It was speculated that he will have some kind of godly attack up his sleeve. He is, after all, born of a fusion by two individuals whose power already rival those of gods.