The new MongoDB Cloud Navigation offers improved user experience with reorganized navigation elements, including organization-level and project-level views, shortcuts, and contextual information. The updates aim to make it easier for users to find what they need quickly and switch between different contexts within the MongoDB products such as Atlas, Stitch, Charts, and Cloud Manager. These changes also enable a more unified user interface across various products, making it simpler for customers to discover and use the tools and features within them.