I think it would be very useful to have a view of the parent publication "chain" for each item via the right-click menu. Here is an example of what it could look like for a component in a child publication (French language Canada website of a global company):
300 content master - (origin) - last edited 2017-01-01
500 structure master - (not localized on this level)
700 north america parent publication - (not localized on this level)
710 canada english - (local copy) - last edited 2017-08-08
810 canada french - (local copy) - last edited 2017-09-09
...and then you could open the item in any of the parent publications via this same popup.
For this purpose, it would not be necessary to display the whole blueprint tree with all the siblings/branches like the blueprint viewer. In fact, finding this kind of info via the blueprint viewer doesn't seem to even be possible now.