Article One: I think it's because the great Manager Blood suddenly had other urgent matters, which is why the opening of the Trial Field was postponed.
Article Two: In fact, there is no fixed duration for the preparation phase of the Trial Field; previous esteemed managers chose to prepare for a century before opening it, but that doesn't necessarily mean the esteemed Manager Blood will do the same, as the trial field's opening announcement never specified a specific preparation time.
Article Three: I believe the great Manager Blood wants to prepare some surprises for the little ones at Plane Sea No. 758, hence delaying the opening of the Trial Field.
Undoubtedly, all three comments make very valid points.
As for the specifics, that remains unknown.
After all, even if they achieve Tier Eight, unless they seek death, they lack the qualifications to meet with those lofty managers.
