I've been looking forward to the Dance of the Dragons for ages now. It's definitely GRRMs best tale. A chance to see the Targaryen dynasty at their most desperate and conniving moments? Conflicts over the line of succession and games of intrigue with black magic sorcerers? fecking shit loads of dragons fighting one another? Plus loads more that would just spoil what's to come if I mentioned it, but it's absolutely amazing.
The source material is juicy as feck, and with the exception of lots of big burny dragons kicking off like a coked pisshead after eight pints of snakebite, the majority of it will have to do the things that made GoT great in order to follow the story it's based on. Tons of pure intrigue, diplomacy and revenge plots set against the backdrop of a King who is trying to undo the damage of his predecessor Maegor the Cruel and fix the wounds between the realm and the faith against the Targaryens. Plus seeing the city of King's Landing slowly being built in the background.
Man, I'm genuinely looking forward to this, and I'm definitely one of those people who still despises how bad the last two seasons of GoT were and how they ruined it's legacy.