D&D know the skeleton framework of the ending, it may end up that the show will finish the series and not the author himself
Part of me see's the silver lining of the upcoming season being fresh and new to both readers and show watchers, we are all stepping into the unknown together. Its exciting.
Doesn't mean I don't want WoW fucking soon. George needs a life coach or something. Like that woman from "Stranger than fiction", do those people exist?