I agree that there's an awful amount of unanswered questions that needed to be explained or explored. One point in particular that stood out was that Cersie Lanister had locked up the Dornish mother(forgive me for forgetting her name) and she was being kept alive so she had to watch her daughter die and decompose. Theoretically, she should have been still alive when everyone was fighting at Kings Landing. Surely somebody, either Bron, Jamie or even Tyrion would have known where she was. So why wasn't she rescued? Arya left to explore "off of the chartered maps, there's a HUGE opportunity for her story to have some seriously huge influence and or consequence for Westeros. Did Drogon take Danies body back to the Red witch/priestess in The bay of dragons to have her resserected like John Snow was? There are so many angles and potential plots that would definitely to make at least 2 new series and give so many of the characters more fitting ends and purpose.