Treasure rooms have lost their luster. Lupina is not the prize she once was. Why not put the current VIP hero in the AMAZING!! chests?
All non-exclusive heroes should be farmable in campaign levels: everyone except Yorick, Daeris, Leonidus, Nimriel, Bovus, Legendaries, Aria and Ember.
When a new hero is released a dungeon should make that token available. When a new VIP hero is released, the old VIP hero should have a token available in a dungeon.
Admiral Kreel, Shade and Lupina deserve their own farmable dungeons and Ferno should be in treasure rooms.