FOX has been saying they expect DNA results "anytime", since yesterday.
If they don't match, we won't hear about it until Nifong shares them with the defense as part of discovery. I may be wrong on this, but he theoretically can sit on them until after the election if he pleases. May 15th is the first hearing in this, right? Nifong could do a Document Dump on the defense anytime before them unless North Carolina law sets up specific times prior to first court appearances.