A response to elegantwoes's reblog:
Hi, short question. Will we find out more about the Dance of the Dragons in future books?
The first dance or the second? The second will be the subject of a book. The first will be mentioned from time to time, I’m sure.
George readily spoiled almost two decades ago, that a second dance of dragons will happen in the upcoming two books, and that civil war can only be about Dany and Aegon. No matter how much you want it to be otherwise, a full on war between Aegon and Dany is inevitable, especially when all the evidence points to Aegon allying with his maternal family and marrying his maternal cousin, Arianne, and Dany taking great offense to it. - elegantwoes
Yes, GRRM spoiled that there will be a Second Dance, two decades ago. What you forgot to mention is that he explicitly mentioned that it doesn't have to involve Daenerys in it.
The second Dance of Dragon does not have to mean Dany's invasion. - GRRM at the San Diego Comic Con, 2006