Hard to tell really, some daily's got bugged and people where able to complete em twice per day.
So without knowing who did what it will be hard to predict before they start popping up.
Will take a week or 2 at the minimum anyway so it will be a while
From what I can tell looking at the boss drops, it's likely that a lot of raiders will have better by the time they become available and we've farmed the mats, assuming the RNG works it our favour.