I think the future will show a slight increase in the number of "trad" hunters, but an overall substantial decrease of hunters in general.
As Al Dean said, people will be working harder just to get by, but those who truely love to hunt will simplify so they get MORE out of it, for the time invested. People who love to hunt will be out more for the solice than the game.
Bows are probably more durable than from the sixtys and seventies, and performance gains are undeniable, but there is only so much that can be done to store energy. Without a mechanical advantage...leverage, a bent bow limb is a bent bow limb. Personally, I don`t see how much more can be done to improve the performance of a bow.
I KNOW my bow won`t be plastic.
Arrows are in the same category. My carbon arrows are so durable that sometimes I am STILL amazed at what they can take.
With the trend that most state game agencies have of herd reduction, I see us hunting far fewer animals. In my area of Michigan for example, hunters are willing to to kill every deer they see. Many of my traditional hunting areas contain very few, IF ANY deer. No tracks in the snow mean no deer. This year, the statement from our DNR was that our deer herd actually INCREASED from 2009, so they increased the number of tags for antlerless deer, and allowed the use of buck tags for ANY deer. I don`t know what to think, except that they have a plan, and it doesn`t include healthy numbers of deer.
The last ten years went by so fast, that regardless of what is going to happen we all by god better get ready for it. Kid Rock has a new song out called "slow my roll". Good advice.