They are still in the state. Friend has pics of one on a trail cam at his cabin in the northern tier. I've met his friend who was wounded by one. He was leaning up against a tree while hunting. He was not aware of the cougar in the tree. Well it decided it wanted down. It ripped up his shoulder pretty good on it's way down. This was a case wrong place at the wrong time.
PAGC would not admit there is a wild hog population in the south central part of the state. I don't think they officially have yet. But they have started to put shoot on site warnings in the hunting digest the past two years. If they aren't here then why add the warning? They are always slow to react.