Mitsuki removing that earring's a pretty big deal, assuming she doesn't just put it right back in.
Haru's absolutely going to shoot her shot; there's no reason for her not to, even if she's near-certain as to what Yuka's response will be. It might be annoying because of the trouble it'll cause Yuka to be confessed to when she's worrying over how to confess to her senpai, but I think as people within this world, it's more important that Haru do it, get rejected, and get it over with so that she doesn't let those feelings fester on her own, and risk them turning into something even worse down the line.
Mitsuki needs to get her act together, though. Yes, she's trying to be overly considerate, given the "optics" of who she is and who Yuka is. There's the timeline of her exams as well, of course--but really, none of that matters.
Hopefully the communication we've been seeing from Prez, and from Miu and Akane, means that Yuka and Mitsuki will find a way to actually talk things out as well. I suspect it won't happen until Haru does her thing, but...here's to it not taking another dozen chapters.
Thanks for the TL as always.