Well technically Madara may not have near unlimited power as he did when he was in edo tensei form. But taking over Obito's body may even it out. I think Sasuke could handle him for a while and I think he has a few more game changing techniques to slab on the table. But it has to be mainly Sasuke to beat him, it's only fair and makes sense.
He didn't take over Obito's body, he just forced Obito to Rinne Rebirth him.
You can clearly see the Black Zetsu coming off of Obito on the last page.
Madara is more powerful now as he established in the chapter, he is still near invincible when it comes to one on one fights.
And he still hast he Rinnegan and EMS, with makes Ninjutsu and Genjutsu useless against him, Sasuke doesn't have a attack that can touch Madara by himself.