in a private email response from the ICEL (edited, to remove references to other, non related topics also covered in the email).
*Thank you for your query concerning the breviary or Liturgy of the Hours.
Unfortunately, it is hard to determine an accurate answer to your question. However, I believe that there will be no change to the texts of the Liturgy of the Hours in the near future. Let me explain. In October 2009 ICEL completed the majority of its work for the Conferences of Bishops on the Roman Missal texts and has been engaged in correspondence with the Conferences and the Holy See about future work. While many of the Conferences feel that the Liturgy of the Hours should be revised sooner than later that feeling does not seem to held in Rome where it is felt that that translation project needs “more reflection”. I would take that to mean that any new publication is at least five years away*