The Ecma General Assembly met on December 4, and one of the matters they addressed was publication of ECMA-376 Edition 2. By a vote of 20-3, the GA approved publication of Edition 2 and it's now available on the Ecma web site.
Note that IS29500 and ECMA-376 Edition 2 have identical content, and differ only in name. This is common practice for Ecma, to synchronize the Ecma version with the ratified ISO/IEC version so that there is no divergence in the two standards.
For those who've asked about getting a working copy of the DOCX version, I understand that those will be available to TC45 and SC 34 members in the first week of January.