Daggers looks to be 100% mature... As far as gaining width in my experience once a deer hits maturity 4+ you typically wont see major width jumps. If he gets another year he may add some tine length, throw some kickers or gain a slight bit of mass. However, if I were in the tree and he walked by there would be no chance of any of that happening.
Great buck, thanks for the pics. Now his buddy, is a stinking TANK! He is a true 300+ lbs deer come the fall. It would be awesome to see you behind that deer too. Good luck