I called it months ago and I'm calling it again: Yuji is going to become a "super Toji". Sure he's a death womb painting but the thing that made Yuji unique was his lack of cursed energy, which translated into enhanced physical performance. It's been commented on by other characters a few times over the years - Yuji runs real fast, hits real hard, etc even when not using cursed energy.
Sukuna transferring himself in whole over to Megumi means he's just permanently ripped all of his CE out of Yuji. Yuji won't be a match for him, but my guess is he's going to be another Maki, or stronger.
I'm thinking Yuji's whole "design" as a death womb painting was an experiment to see if you could create a human/curse hybrid without cursed energy, that is, a curse or part-curse that can take advantage of the heavenly restriction buff. Kenjaku probably considered him a failure because his degree of heavenly restriction wasn't impressive - on the level of Maki in the first arc. But at least Yuji's traits enabled him to survive becoming a Sukuna vessel.
The endgame of this manga is gonna be essentially a bunch of Tojis (sorcerers and latent sorcerers who lost or gave up their cursed energy to become essentially superpowered humans, or an army of Steve Rogers) vs Kenjaku, Sukuna et al. That's the whole "which direction does humanity go into - removed CE or refining it" philosophical question that keeps recurring in the plot.