Nerf the PoK books to keep that Classic travel feeling going a bit longer. Options could include: 1. Leaving in just a few books to main areas: 1 book to Classic, 1 to Kunark, etc. 2. Remove all books and put one main entrance somewhere difficult (Like Plane of Mischief's entrance is in Temple of Veeshan) 3. Devise your own idea Depending on the options chosen, and depending on what people want, wizards and druids could still have PoK portals to increase their value as classes.