KISAKI announced today that MIRAGE will return in 2022!
It seems the band will fully revive in time to celebrate their 25th anniversary. And this isn't just a one-off performance; the attached flyer specifies that new member(s) have joined the band, and that this will officially be MIRAGE's third period.
In KISAKI's past bands, a new period usually indicated a change in vocalist (at least). It's unclear if that will be the case here, or if core members AKIRA and YAYOI (who have been with the band during its limited activity over the past few years) will remain.
Full details about the band's revival are set to be announced at a later date.