Well, I remember that in the first series Ryoma wanted to defeat his dad or at least make him play seriously so having the match being Ryoma vs Ryoga also means he's fighting his father too. After that match, I'm also interested about Spain's masked boy, this is going to be interesting.
Just the usual tournament break shenanigans, usually before or after important matches he writes a filler episode where they compete randomly to avoid whatever Inui just made, it's a tradition at this point.