I also dare to think that we even get a new Gideon in M14. Remember when Lili 2. appeared in Lorwyn. Then in the following coreset even another Lili appeared. i know thats not really a reference, but Wizards will include more than 1 new Planeswalker-cards in coresets. & my bet for the other planeswalker beside Chandra will be Gideon 3.