Firaxis is about to release an official expansion for XCOM 2 called War of the Chosen, due on Aug 29 this year.
RPS has the first interview/preview I know about on the topic, (https://www.rockpapershotgun.com/2017/06/20/xcom-2-war-of-the-chosen-preview/) but (perhaps diplomatically) doesn't mention the first thing I thought of: obviously this will break LW2, right? ::) I MEAN THERE ARE PRIORITIES HERE! :))