Guys, we have had this conversation before about licensed property, so unless one of you guys own controlling stock in Martin’s publisher, than we already know how this going to be answered. Besides, Battlelore is already doing figures for it in the 20-15mm scale with a game and do we really want more stuff for a story that revolves around this pathetic psychopath and his power mad mom:
Seriously someone needs to push him off a high tower with his mom. The best thing about GoT is the armor and how real the battle scenes look
while Game of Thrones would sell (due to its camp followers if nothing else), I think it would be wiser if WGF just did some Medieval European historic sets from the plate armor days and do Russian boyars for their own fantasy setting (particularly now since a lot of the newer TV and movie fantasy epics, including Game of Thrones, are barrowing a great deal from places like Eastern Europe and Asia in addition to western Europe when it comes to armor design).
But since we are talking franchises, the book series I would love to see have minis (but probably never will) is the Japanese novel series The Heroic Legend of Arslan
As you can see it already has a manga and anime adaption (in fact it is going to have second anime adaption based on the manga), and if you liked the war scenes, intrigues, and strategy room moments of Games of Thrones but hated all the sex scenes and the fact that all the characters either turn into villains or die just because they are likeable, than you will probably love the older anime adaption of The Heroic Legend of Arslan
novel (I can really only vouch for the older anime OVA series, but the manga looks good).