The 2013 revision has been released in 31 languages for the full Bible and 25 further languages just the Greek Scriptures (languages that didn't have any New World Translation previously). Languages where the bi12 (1984 revision of the New World Translation) was released after 2001 or 2002 will not have the 2013 revision translated, because those translations already incorporate many of the updated renderings (e.g. Romanian, which was released in 2006 — we received a letter stating that the revised Bible will not be released in Romanian). I haven't seen it officially confirmed, but the languages where the bi12 Bible was printed with gray covers will not feature the nwt Bible.
In total, the New World Translation is already available in over 140 languages (bi7, bi12 and nwt combined).