Dragon Ball Super has started a new arc the Granolah The Survivor Arc. There is a new tweet that shows this will be going back to Saiyan history as being used to conquer planets for Freeza. Also it shows that Granolah role in the arc is still unclear.
“We were introduced to Granolah in the final chapter of the Moro Arc, seeing the mysterious warrior attempting to target one of Moro’s henchman, OG-73i, but learned little about who this space traveler was. With some recently released previews of Chapter 68, we learned that Granolah is actually a member of an alien race that was destroyed by the Saiyan race, with the green-haired warrior unaware that Saiyans were still in the universe following the destruction of the Planet Vegeta at the hands of Freeza! Though we still don’t know if Granolah will be a friend or foe to the Z Fighters, it’s clear that this “Cerealian” will change the course of Dragon Ball Super!”

Article:Dragon Ball Super Hints At Warrior Stronger Than Goku In New Arc (comicbook.com)
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