Anime has one advantage over manga – voice acting.
Imu speaks for the first time in chapter 1085, so we will hear their voice in the anime adaptation.
Oda very often communicates with the anime staff, so they will know what kind of voice actor they need to hide for the role of Imu. The anime will tell us if Imu is a man, woman, child, or someone old.
That's why, in order to eliminate anime spoilers, Oda needs to reveal Imu's identity before the adaptation of chapter 1085.
So, Oda has around 1 year.
Imu speaks for the first time in chapter 1085, so we will hear their voice in the anime adaptation.
Oda very often communicates with the anime staff, so they will know what kind of voice actor they need to hide for the role of Imu. The anime will tell us if Imu is a man, woman, child, or someone old.
That's why, in order to eliminate anime spoilers, Oda needs to reveal Imu's identity before the adaptation of chapter 1085.
So, Oda has around 1 year.