So the launch video is out; here: Of note is the 1:12 mark where there's obviously a winged hussar. I read that some people have found some information about Jadwiga who was the first female monarch of Poland. I forget what they found and where it is. Maybe someone can help? There's also the odd number of 19 civs (18+Aztecs) in the vanilla release. Twenty is a nice, even, base-5/10 number Devs also said there would be some information that was being held until release. An observation against Poland being in the game is that Vikings were in the vanilla launch video for Civ5 and didn't appear until a later DLC. Also, people found some information about Suleiman the great, but besides that, there's no other evidence of the Ottomans in the game. So, what's your guess?