Most of my projects depend of other Epic in different project and teams. In order to to have an exact vision of dependencies, deadlines and work to accomplish, I truly need to see epics from different projects in my roadmap.

Update from Atlassian 11th February 2022

Thank you all for your valued feedback. 

To set some context - The basic roadmaps feature on Jira Software Cloud is targeted at a single software team with one project per roadmap. Currently, this view only works with issues from the backlog associated with one project. https://support.atlassian.com/jira-software-cloud/docs/set-up-the-roadmap/

Cross-project planning is only possible in Advanced Roadmaps which is targeted at "teams of teams"/software organization level planning, which is included with Jira Software Premium and Enterprise subscriptions. More here on how to set up your first plan: https://youtu.be/xJ-RmFwEVjM .

Thanks again for your feedback and time spent articulating the needs of your team. We really do value it.

Regards,

Rathesh Richards, Product Manager.