At this point, I can't see the Tigers taking more than five wide receivers. While it is presumptuous to think the Tigers will receive commitments from all the aforementioned prospects, it is also clear that they either lead or are in a tight race for each.
I believe Blacknall will commit to LSU in the near future, and the Tigers have a solid lead for Dupre. The curveball here might be LSU missing on Noil. It isn't likely, though.
Here is the way I see it: Dupre, Williams, Upchurch, Noil and Blacknall all sign with the Tigers on National Signing Day.