Details about the reprocessing effort and expected duration will be posted to the USGS Landsat website (http://landsat.usgs.gov) when they become available.
Please contact USGS with any questions.
To contact the Landsat Project the email address is: landsat@usgs.gov
Source: USGS Landsat Program

Webinar Recording Available: Advancing Science Capabilities with Data Harmonization & NASA’s Harmonized Landsat Sentinel-2 (HLS) Products
This webinar provides an introduction to HLS data, services, and tools and shows you how to find resources to work with the data; visualize, search for, and access the data through NASA Worldview and Earthdata Search; it also demonstrates how to use the Fire Information for Resource Management System (FIRMS) tool to visualize HLS data to monitor fires and floods.