
It would be a beast. Boruto has already proven to be a prodigy and he has Uzumaki and Hyuuga DNA and Sarada has Uchiha Heritage so their child would be like a new Sage of Six Paths.
Boruto is not a prodigy, he depended on a gadget to win battles in the first half of the Movie, it's only at the end, he used a space-time rasengan move and to be the Sage Of Six Paths level, that kid would need Indra or Ashura's chakra.
With all due respect, If the author says he's prodigious you can't exactly contrst that. He may not be the traditional prodigy you envision but according to the author he is one, nonetheless.
The manga has yet to start but here we are talking about their kids.
Seems like people are eager to ship the two together and not explore their potential first.
He is labelled a prodigy because he cheated, at a young age, he was extreme lightning and water style jutsu's only be to found out, he was using a gadget.
Regardless of that, the author has touted him as a prodigy.
Not to mention he added an element to his Rasengan unconsciously. A feat his late grandfather was still attempting until his death & his father achieved at a later age than Boruto himself.
Still cheated.... And He had sasuke as a mentor. O...O
Sakura's fodder genes would denounce it.