In my experience, the smell and flavour comes out after a good 3-4 month cure. But as for getting stronger, I would say that is one persons experience compared to another.
What actually happens if I am correct here - when your plant is harvested it has non-psychoactive THC, and thc that is already psychoactive. Once you dry and begin to cure, after the plant has stopped all productivity, this allows the non-psychoactive THC to turn into psychoactive THC. Meaning there is a higher percentage of THC, which in turn means a higher "high". Taste and aroma also improve as chlorophylls and other pigments begin to break down.
So in my opinion, yes. Because there is more THC converted into psychoactive THC once it gets a chance to mature.
EDIT: LOL im stoned, after I read this I realized how stoned I was. Hope this makes sense.