"A large number of invisible walls have been removed from the world" I haven't found 'a large number' but: You can now white water down thru the falls from Shrouded Glade right down the river. You can now get to all parts of the big lake in Black Spore and out to the island. You can hop over the barriers in the cave in Pony Vale but not much is there. You still can't go off the coast in Sea Side or thru the barriers at Lavender Coast or enter the boarded up cave in Shrouded Glade or go up the boarded up trail to the south in the mountains above the dock on the river on the east side. My bet is nothing boarded up, except Pony Vale, is open.