You won't see many location as this story evolves around targaryens and the civil war which would follow. Maybe we will see more locations once the war start. Else you are pretty much stuck in Kings Landing and Dragonstone, where majority of this story happens.
There isn't much politics from other region going on, because if you mess with Targaryens, you will get destroyed by dragons. And considered they have 4x the dragons since they came to westeros. No one wants to mess with them.