I've read all the books up through Winds of Winter.
Shireen ain't dead in the books, and the three chapters they posted on Martin's Not A Blog (Sansa Stark, Arya Stark, and Arianne Martell) didn't deal with her.
16 posted on 06/14/2015 6:22:49 PM PDT by kiryandil
(Egging the battleship USS Sarah Palin from their little Progressive rowboats...)