Allen Wirfs-Brock, editor of the ECMAScript 6 specification, recently mentioned on Twitter that the schedule for ECMAScript 6 has changed slightly.
This is the content of Wirfs-Brock’s tweets:
Furthermore, ECMAScript 6 features are appearing in modern browsers at a steady pace .
The previous schedule looked as follows:
According to Wirfs-Brock, ECMAScript 6 will be finished (with the exception of fixing last bugs) by the end of 2014. The publication process starts in March 2015 (and is finished in June 2015).
In other words: ECMAScript 6 implementation and adoption is progressing nicely, but standardization takes more time. The specification is a huge document and getting all the details right is an enormous task.