Just as the Tree view currently has a little 'tree' icon to indicate there are more ancestors, it would be nice to have an icon of some sort below the "terminal" profiles on that view which would indicate there are direct descendants of that profile.
For example, if the "focal profile" has 5 children (which would be seen on the tree), with, say 4 of them with at least one partner, it would be nice to know (via this "new" children icon):
a) that any of the 4 relationships had direct descendants
b) if any of the partners had other descendant, even if the "focal person's child" did not.
This would not necessarily need to be a count -- just an indicator for "1 or more" would help to navigate the 'Forest' more effectively.