The upgrade of HERA offers exciting possibilities to further study electron proton scattering at high energy. The increased luminosity will allow precision measurements of deep inelastic scattering to be extended to the highest Q². Polarisation will open up many new physics areas, providing increases sensitivity to Standard Model and new physics alike. HERA will have enhanced potential to discover physics beyond the Standard Model in a wide range of new physics scenarios.

PACS numbers: 13.60.--r, 13.88.+e