As expected, Nikaidou won. This is setting up to be the "Rei's rematch arc" now that he has recovered.
We get Rei vs Nikaidou first, this time hopefully both enjoying the match (I'm expecting some feels too) and then the one I'm most excited to see: Rei vs Shimada, this time with Rei fully focused on it.
I don't think we will also get Rei vs Souya, he will probably lose before him, but who knows.