currently, if you exceed the max level of a wilderness area, the penalties are really steep:
+1 level - 1/2 exp
+2 level - 1/3 exp
+3 level - 1/4 exp

I would change it to something less punishing, perhaps similar to overlevel penalties for quests
+1 level - 9/10
+2 level - 3/4
+3 level - 1/2
+4 level - 1/4
+5 level - 1/5
1/6
1/7
etc.