Production staff of remaining 3 episodes were revealed.
Unlike earlier episodes of S2, most names are same with S1 (You can check it in the ANN site). One notable exception is Okada Mari, a female writer, who will write the next episode. Well... we will see. Okamura Tensai, the series director, will do the storyboard job for the episode, so it must not be horribly bad. Anyway, it looks like she was introduced to describe Suou's development, so the next episode is likely to be largely about Suou's change after she got to know her secret (and was rejected by the woman who she has believed to be her mom).
ps. As for the rumor I posted, please don't regard it too seriously. Yes, it's plausible (especially the Shion part), which is the reason why I posted it here. But a rumor is a rumor until proven!
So let's wait and see whether Suou will get mad and wield her gun randomly in the next episode.