Show Roadmap item dependencies
Be able to show that an item has dependency on another item - either in the same row or a different row
Dependencies in Roadmap would be extremely useful, with the option to select hard or soft dependency behaviour.
It would also be helpful to have a line (similar to current date) drawn down the page/canvas for key dates added to the roadmap overview to signify release dates and code freezes etc. - being able to shade areas between these dates could be useful.
When I was using classical MS Project, the roadmap concept was actually represented by the master project that could load the various sub-projects and allows to create the existing inner-dependancies. The resulting road map was then realistic in a way as it took these dependancies into account, whereas the Project for the Web Road Map is simply displaying various projects as they were independent, and as such provide an unrealistic overview. It would therefore be essential to improve the Road Map with this feature.