1889 is definitely a year I want to be full of soap-opera worthy threads and plots, so I present a list of potential plots (small-scale or board-wide) that fit that definition.
For some reason or another, a seer (probably one that's very charismatic but overestimates their own abilities) predicts that, gasp, the world is scheduled to end in 1889. They gain a number of followers who believe that the Department of Mysteries (and therefore the entire Ministry) is planning to "restart" the wizarding world by erasing their memories to brainwash them. You know, conspiracy shit.
There could be uprisings, riots, and DP reporters could even start believing and publish slanderous articles
... Probably not "Voldemort is trying to kill a student here every year"-level trouble, but trouble nonetheless. Maybe there's something wrong with the headmaster's barrier. Maybe there's a unsolved murder (Kristoffer Lestrange, your time to shine is now :P), or maybe students begin disappearing and no one can figure out the connection between them. Maybe students begin rapidly aging one week or there's unexplained body swaps happening. Idk xD

— MJ is MAGICAL —
Party Like It's 1889
For some reason or another, a seer (probably one that's very charismatic but overestimates their own abilities) predicts that, gasp, the world is scheduled to end in 1889. They gain a number of followers who believe that the Department of Mysteries (and therefore the entire Ministry) is planning to "restart" the wizarding world by erasing their memories to brainwash them. You know, conspiracy shit.
There could be uprisings, riots, and DP reporters could even start believing and publish slanderous articles

Trouble at Hogwarts
... Probably not "Voldemort is trying to kill a student here every year"-level trouble, but trouble nonetheless. Maybe there's something wrong with the headmaster's barrier. Maybe there's a unsolved murder (Kristoffer Lestrange, your time to shine is now :P), or maybe students begin disappearing and no one can figure out the connection between them. Maybe students begin rapidly aging one week or there's unexplained body swaps happening. Idk xD
The following 3 users Like Bella Scrimgeour's post:
Acacia Darlington, Elwin Abercrombie, Richard Addle
Acacia Darlington, Elwin Abercrombie, Richard Addle

— MJ is MAGICAL —