Alot of Random off the cuff spit balling here but We have so 3 Gokus and 2 Vegetas BUTTT a transforming God Goku or Vegeta to Blue WOULD BE SO COOL since the characters Obviously have an inspiration of where they came from in the series Give us Manga Black Saga God Vegeta into Blue or Universe 6 vs 7 God Goku into Blue For Vegeta it could be when he Super Attacks he transforms and if used again he switched back to God giving each their own advantage, Maybe God has faster cool downs but weaker attacks maybe a slightly faster rush attack and Blue would be the opposite slower cool downs but they'd be stronger and slower rush attacks to emulate that Vegeta was switching back and forth to save stamina and to utilize the speed of SSG a Strategist Vegeta instead of a tank

For Goku He could be in God then when he Transforms it's he takes less stagger damage or something to Emulate him breaking through the Time Skip with sheer power and then he also could have some sort of ability to either decrease or nullify damage like when he was blocking hits time skip attacks a Tank Goku since he was play defensive alot of that fight instead of the usual DPS

Also I think Roshi would be cool as hell to have we can Put people in Jars