Scanlator here!
The side-story oneshot chapters are pretty recent (as in, a couple months ago recent), so we might see more of them at some point. Arata Iri mentioned a Chihaya/Miyako chapter specifically, but I'm not sure when we can expect it. I imagine she has her hands full with the Todo no Tsumari reboot right now.
Wait, there's going to be a reboot of Todo no Tsumari? Was she not not satisfied with the original or something like that?
Also, I hope we do get a Chihaya/Miyako chapter. They're my 2nd favorite couple after Kanna xYuu.
I believe the magazine she was in did some restructuring and she got the short end of the stick, since she seems to have the worst luck on the planet when it comes to magazines.
On the bright side, she's relaunching the series in Dengeki Daioh, where Bloom Into You was running. I get the impression they're looking for a yuri series to fill the void now that it ended, so fingers crossed that she finally gets the support she deserves.