In the past year since 2024 the DAS-Network (Distributed Acoustic Sensor) on the DESY-Campus had been extended for fiber paths of a building foundation and the PETRA tunnel. Together with the existing installation the Network now offers even more insights into the seismic underground of the campus and surrounding. Details of the changes are to be presented here as well as the future plans for a further extension in 2025 (XFEL), new data, new algorithms, new projects. You are all invited to participate.