Augen on 01 August 2016
They could easily do stories from other eras if people want more Westeros and Essos. The Long Night, Valyria and Ghiscari wars, Aegon's Conquest, The Dance with Dragons, Robert's Rebellion, etc.
Season 1 is still among my favorite seasons of any show ever made. I don't have any expectations for seasons 7 & 8 after seeing the show's direction in season 6.
