Smart Cities and Communities, and Local Digital Twins are being progressively deployed in the EU. Advanced solutions will be rolled out as natural interfaces to deploy the CitiVerse at different levels in conjunction with urban platforms, new simulation algorithms and other emerging technologies. The ultimate goal will be supporting citizen's participation and exploration of such hybrid worlds. There is a need then to produce a Landscape Report on the standardisation and pre-standardisation work relevant to the CitiVerse and take this input to work out a pre-standardisation roadmap for the CitiVerse. During this Webinar we presented the standardisation and pre-standardisation work relevant to the CitiVerse (Metaverse for Citizens) elaborated within the StandICT.eu 2026's EUOS Technical Working Group, looking at horizontal dimensions and enablers like trust, security, privacy, sustainability and accessibility, openness, interoperability; and vertical dimensions like networks, edge/ cloud, blockchain, AI, computer vision, image processing, AR/ VR, virtual and real-world integration, linking all to specific needs stemming from defining concrete use cases for relevant services and capabilities.