Could the Issue Links be extended to include more than one variable. This would allow more complex links to be added/utilized.
Example: Team Foundation requires a minimum of 3 variables to ensure that an item is linked correctly you need to have the project collection, project and the work item number.
Project Collection = "DefaultCollection"
Project = Phone%20Saver
Work Item = 133
string format for url:
That's an interesting example. We'd need some way to help prompt for those items on the merge as well, but I see the value.