This may surprise some of you, but I hope it doesn't come to all hunting being privatized behind high fence. I think options are great. You wanna hunt high fence? Have at it. You'd rather hunt your private farm "free-range", managed as you see fit? Knock yourself out. You prefer chasing them down on public land with a bunch of weekend warriors? Have fun, but make sure you tuck and roll when the powder starts burning.
What will have the biggest effect on the future of hunting? Which idiots the sheep of this great country elect into public office. Approximately 60% of the US is publicly owned, so the opportunities are there to the degree our esteemed leaders allow them. This country (as a whole) seems to value liberty less and less with passing time, so I'd say the future, sadly, looks dim. I sincerely hope I am wrong as I am passing the tradition to my three up-and-comers, but what they have to look forward to I am not certain.