A digital twin is a digital replication of a living or non-living physical entity. By bridging the physical and the virtual worlds, data is transmitted seamlessly enabling the virtual entity to coexist with its real counterpart. Utilizing AI, the digital twin monitors, comprehends, and optimizes the functions of the physical entity, offering continuous insights to enhance citizens' quality of life and well-being. A Metaverse encompasses an interconnected realm of persistent Digital Twins. Within this research initiative, we delve into designing and developing frameworks, methodologies, and strategies that converge multimedia technologies (AR/VR, AI, IoT, Big Data, Cybersecurity, and 5G) to shape the Metaverse. We will explore techniques for sensory data fusion and streaming within the metaverse context, addressing unresolved questions and potential avenues for further research and development.