I don't think it's necessary for Future Vegeta to have SSJ or for Future Gohan (Two arms) to be stronger than him, but my numbers have enough space for that.
I imagine he trained, but not in Ultimate and ended up losing that form. Still, his Base/SSJ power is greatly above what it was in the Boo Saga since he can handle SSJ Baby Goten without transforming.
Just rewatched the fight and he’s not as impressive as you make him to be. Hit was getting his butt kicked and wouldn’t have gotten anywhere near him without Timeskip. Hell he couldn’t even touch Jiren until the end.
@SIAD Vegeta used Ultra Instinct principles to see Jiren’s movements in...
And then SPC would be 14.
Cell vs Goku and Gohan = MSSJ
FP Cell = Grade 2
Buff Cell = Grade 3?*
SPC = SSJ2
*FP Cell was weakened so his Grade 3 boost wasn’t very big. 12 at best for Buff.
I think the Goku/Beerus gap fits perfectly here if SSJ2 = 2x. Could even have Cell at 70% just like Beerus.
SSJ Goku: 6
Cell: 7
~ FP: 10 (Grade 2-esque just like 100% Freeza)
SSJ Gohan: 7.5
~ SSJ2: 15