There is a youtube channel called 'whycreate' he has a ton of videos on all the lore discussed in the various books. Watching his videos made me realize, Westeros is the least interesting place in their world.Aegon's conquest of Westeros
Doom of Valyria
The Age of Heroes/The Long Night.
Any of these and i'll be greatly pleased
Meh there is a lot of good shows on. Anyways a show about the mad king with young Ned Stark and Robert Baratheon would be interesting but I read they don’t want to do it.You're too dismissive. I mean, those shows will probably be better than most shit out now.
None of the characters on the show now will appear, I think.
There are some source material they could go off but are you forgetting HBO has some of the best written shows. The Wire, The Sopranos, The Leftovers, Rome, Westworld, True Detective, Six Feet Under, Band of Brothers. They will be fine as long as they get better show runners than DnD.This stuff probably has no book material, and we have seen what they can do without something to follow the last few seasons