First panel, top left. He seemed scared.
I see 3 possibilities:
1. He really thought that he could kill him that easily and was scared after beeing defeated so quickly, Hashi's power will save him.
2. He knew that he doesn't stand a chance in a fight and just intended to come closer to Madara to use Hashi's power and was surprised because he didn't think that Madara could stop him this easily, leaving him unable to use Hashi's power. Someone else has to save him.
Very unlikely but still:
3. He really thought that he could kill him that easily and was scared after beeing defeated so quickly, he used a genjutsu on Madara in the last moment.*
*= The only reason why I think this might be possible is because Sasuke combined his powers with Itachi's, and Itachi was a genjutsu master. It might be enough to catch Madara for a split second in a genjutsu.
I can't see him using Izanagi or Izanami since its too early for him to lose one of his eyes, still a lot of fight ahead of them. And the Sasuke/Naruto fight still has to happen if both survive. Ofc Kishi could come up with some crap like Hashi's power preventing Sasuke from losing his eyesight but that would be the worst idea ever.