That question might have been easily answered with a resounding "Yes!", but after the latest craze to sweep the NFL, the pistol offense, the question might not be "Will they keep him?" but "Can they keep him?" (I am not calling Daniel the second coming of RGIII, but he is mobile enough to run that offense well.)
He has been groomed by Sean Payton and Pete Carmichael, two people who are paramount in Brees' journey to Hall of Fame status. Another thing he has going for him is the weak crop of quarterbacks that are coming out this year in the draft.
Personally, I don't see Daniel ever being anything more than a backup in this league, but teams are always willing to go after backups who have sat and learned from offensive geniuses (Matt Flynn ring a bell? Don't blame him for Russell Wilson blowing up.).
Anything's possible, and let's see what his options could be out there in free agency.