Even the biologist won't/can't answer that question, but the safe money says there will be far more feral hogs decades down the road, then there are now. They are unstopable.
Wisconsin has a million and a half whitetails going into any given fall, so I highly doubt the hog numbers will be anywhere near that in our lifetime (in the midwest). But they will grow in population.
Food/forage will never be an issue with hogs, anywhere. They will and do eat ANYTHING.
