Ill tell you, Nobara is going to be the last challenger. She will pull out that iconic heroine phrase Ii kagen ni shiro! And knock out Megumi's soul, wake him up, he then start to fight his body back. From there, the strongest sorcerer will start to weaken and eventually lose.
Instead of the classic villain of the week trope we now have a hero of the week trope.
Please just let something meaningful happen instead of this weekly repetition.
They say heroes arrive late. While it's getting too damn late, we all know it'll be epic when our protagonist, Miwa, finally arrive to put Sukuna in his place.
She will soon be the strongest available anyway...
I guess we'll see quite literally every character pop up to take swings at Sukuna. They'll get hyped up, a backstory showing that they're just some great tender sweetheart that's a super master at their own respective techniques and then after like 10 panels of fighting they'll get roflstomped so the next schmuck can come in and get their cheeks separated.