no Kiyosumi has to win this , this isn't just about out saki and teru, think about it, this is hisa last chance to make a impression to become a pro, if nodka wins they will get to stay home instead moving , saki and teru will have more time to bond when they directly face each other , but Kiyosumi has to win this. i actually saki's big mess up in the indivual match, besides Kiyosumi wasn't even heared of un till this match, plus i want to see teru's school and Rinkai crash into the ground while Kilosumi raises to the top
Isn't Teru Vanguard while Saki is Captain? They won't face of anyway unless deus ex machina comes and helps :/ Fot Hisa to make an impression she could simply dominate her round. As for the Haramura case....usually in this situation the "oh but she is so happy with her friends" plot would move her father anyway...(also if Kiyosumi wins the nationals it would feel like Saki would end which I don't want >_<)
It is indeed true that Teru is the vanguard while Saki is the captain. Saki seems to be aware of this, since she's watched the Side A semifinals captain match, and refers to Awai by her position. She also chose not to watch Teru's match for unspecified reasons, but knows she's the vanguard.
As for Hisa, I don't recall her wanting to become a pro. In the first two years, when she lacked the members for a team, she mentions that she could have participated in the Individuals (and given how she ranked, it's possible she would have been able to move on to the nationals), but chose not to. As for Nodoka, that is entirely up to her father, since he gives a somewhat ambivalent answer to her proposal. It might be nice to see how he develops over time.