If the rumors of CGI being present in the Moro anime are true, this moment will 100% be CGI considering how they always tend to do larger "abstracts" with it
SH has proven that they are competent with CGI for larger beings, so it's probably going to look pretty damn good atleast
A Dragon Ball remake that covers all 519 chapters with a competent production team, having this level of animation would be the single greatest anime to ever be produced
The fact that the original anime is so well-regarded despite the pacing issues proves that this would be huge