Your DS will hear something by the end of the cycle either way. They will do some regular scholarships in with the MSISR/BOOST ones, but not necessarily alot. There will also be a waiting list that will likely go into the end of April for some candidates, but there will be a portal update/email sent to candidates that will not be awarded probably in the next couple of weeks. This denial email is to the candidates that don't have a mathmatical chance at being awarded to the few scholarships that come available in the next month or so.
Until your DS gets a notification of denial, he is still in the hunt. No news is good news.