I know they will reveal the 3rd Adventure Path at Paizo Con, but has there been any hints as to what it will or will not be?
My picks would be...
Jade Regent is #1 on my list. We need Samurai/Ninja in the game!
Wrath of the Righteous - Mythic level content and tons of demons so this is high up on my Diablo-loving list!
Serpent's Skull - I wish they would have done this instead of Skull & Shackles. Sure it has pirates, but much better than that is Mayan-like temples and lizardmen!
Carrion Crown - Gothic horror with Lovecraftian monstrosities! Maybe they can toss a few extra lovecraftian monsters in the core set adventures where you face, but do no kill them to appease all the Cthulhu requests. I'm talking base scenarios before you start the true adventure path just like in Rise of the Runelords baseset!
Second Darkness (Underdark, who does not like that?) [Even though many RPG players hate the AP, they could edit/change the parts people were appalled by]
Iron Gods - I know the RPG is not finished, but so far it looks like a great Scifi/Fantasy hybrid! I hope it gets selected in the future!