The obvious conclusion is that she's about to announce Minazuki killed the prez.
That said, it is so obvious, it is possible the author will subvert it. Vice prez could try to tell them the prez is dead but Minazuki tried her hardest to save him, so she's telling the truth and they should run.
Not sure which of the two ways it will go.
It would be cool to see her back up Satsuki and try to save everyone. Even if she's only doing it because she wants to subvert Seo's plans.
Also poor Satsuki, she's had a rough go of it these past few chapters