Under normal circumstances, Matos (sometimes Pinchas) through Vayeilech (sometimes Haazinu) are read during the weeks before and after Tisha Be'av and Shabbos Shuva. Their haftaros therefore get replaced with the haftaros for that time of year.
In principle, those parshiyos could be read at a different time. For example, in 2020 a shul might have been closed during the summer (probably not in the US, but maybe in other places?) and decided to read 2 or 3 parshiyos each week until they caught up to the normal schedule. If that happened, and one of those parshiyos was read last at another time of year, I imagine they would have read the "proper" haftarah for the parsha. Did that happen anywhere?
I also heard that R' Hershel Schachter allowed a shul to let a boy who missed his bar mitzvah read "his" parsha from a second Sefer Torah, and since that extra reading closed off the leining, he would read the haftarah connected to that parsha. Has that ever happened, because of COVID or otherwise, and resulted in one of those usually overridden haftaros being read?
Or any other scenario I'm not thinking of?