BTW, I think we might process to second hight school year. First of all, spring, season of growth. Secondary, reset roles switch might be because bigger cycle comes to end and all this clockwork associations reminded me that clock have multiple hands and bigger reset means bigger hand moving.
I also thought about role switch stuff (it is a real role switch, I.e. Sensei becomes "reset-guy" and Ayane/reseted Maya becomes "protagonist-girl", not just Sensei is now also doing resets). I strongly love the idea that it would not be the first switch and Maya had memories of previous big switch. It explains a lot:
1) Maya cannot tell Sensei about it, because it is "forbidden" memories
2) Maya cannot tell Ayane about it, because Ayane's existence means Maya would be reset soon and it is realy hard thing to tell
3) But it is exactly why Maya got so pissed by the fact Ayane made it to the roof in 3rd reset and immediately thought about pregnancy. It was just after her test of courage, but netherless she started to think a lot about her own reseting after it.
4) Maya knowns a lot of shit she cannot explain because she was only told about it
Also, if year would be switched in next update, this theory would also explain reset-related demeanors in events we thought was "pre-resets". Cannot find it right now, but AFAIR Sensei already had thoughts about how time is strange while he tutored Noriko. Or it was Maya, don't sure, maybe they both.
Overall, we finnaly reached phase where reset-theories can be at least disproven, nice.
PS cannot get rid of though that previous reset-girl was Ami. Don't now how might it impact future events, but is somehow sounds logical