anyone know when the 3rd book of the kingkiller chronicle will be published??

after finished The Name of The Wind and The Wise Man's Fear, i found other book hardly interesting enough to challenge this two

currently reading Beyonders book 2: Seed of Rebellion by Brandon Mull
after reading his previous series, Fablehaven, i found that this series kinda disappointing. Fablehaven series is my favorite fantasy novel and seeing the same author's work not reaching the standard make me really sad