Noront Management have said many times that they will report information as soon as they can and not sit on anything.
However it is certainly reasonable for them to analyse assay results so they can report on them in such a manner that they make sense to investors. This and writing the news release likely takes a few days especially if they wish to combine assay results with some details of additional drilling results done in the period while awaiting results.
Noront has, believe it or not, been good about reporting even if we forum members always think and wish for news earlier. It's like mailing a letter, as soon as it's in the box you're at the mercy of Canada Post.