We are using initiatives as equivalents to epics. Like the more granular features, some of the initiatives have interdependencies. We already use the stack ranking, but it would be great to be able to capture initiative relationships the same way you can currently capture feature relationships (i.e. "depends on", "is related to", etc.)
Ideally, these relationships could be visualized in the initiative roadmap!
The status of this idea was out of date. Since this was requested we have added the ability to add record links to initiatives. These can also be visualized on the strategy roadmap.