I can't wait to see how they get this to work on their miniscule budget. I'm guessing most of it will take place in the dark, with no mammoths, polar bears, sled dogs, shadowcats, and maybe only a handful of giants sprinkled about. My expectations are very low.
Personally, I'm not worried about the budget or the direction, I'm worried about the script.
GRRM wrote Blackwater and all his episodes have been great. D&D's are hit and miss.