Yes. The USCCB has been working on a revised translation of the Liturgy of the Hours for the better part of the last decade. While I haven’t seen anything specific about a revised Lectionary, there is work going on in parallel to the LotH to produce a common “liturgical” Bible for use in the US based on the New American Bible, Revised Edition. It is supposed to be complete around the same time as the revised LotH. Since it’s purpose is to use a single scriptural translation for all liturgical readings, it would follow that it would be used for a revised Lectionary and any changes to various rites.
That being said, when will they be complete? You have as good a chance of figuring out when Christ will return as you would to say when the revisions will be complete.