QNAR 2.0 Preliminary Report: This Quantum Network Applications Roadmap 2.0 is the second iteration of a 2024 document from the Center for Quantum Networks of the University of Arizona and the QED-C. It provides a roadmap, using input from 50 experts from the quantum community, that updates and expands upon the initial version. The new version identifies the ten potential high-impact applications of quantum networks, the market size and timeframes these applications will be commercially available, and the network performance and underlying technology requirements.