I've found this line to be quite frustrating as well. The rate of figure releases wouldn't be as disappointing if the final product were of a higher quality, but with each Game of Thrones figure they release, there's always something a bit off with the headsculpt, and that ruins the entire figure for me despite how great the costumes look.
It's so disappointing to me because high quality Game of Thrones 1/6 figures are probably the biggest collecting desire I have, and now we stand 2 years away from the series finale, and it seems like the peak time for these figures to be made is dwindling away.
I'd love to see another company get this license and see what someone else can do, maybe we will, maybe we won't, guess we just have to wait.
And I actually liked the Funko Legacy Collection Game of Thrones figures. I thought they were great for the price and remember searching online all the time for any news on a series 3, only to finally read that the line had been cancelled.