This proposed report would show for each process which other processes are connected to it (linked process, conditional, linked by decision diamond or via notes)
Currently you can see this information for an individual process by going to the dependencies section of that process, but there is not way to generate reports with this information for a group of processes.
Having this report and being able to export its results could aid in developing visual flows of connected processes, aid in change management efforts, and dealing with processes connections prior to archiving.