Board Thread:Lore Discussion/@comment-32666991-20171108134807/@comment-33722512-20171121115205

I think, that perhaps The Last Dragonborn is the last one to have it gifted to them. The Last Dragonborn woul therefore still be able to continue the legacy, but it is the last time that it was gifted to a mortal.

Or... Perhaps The Last Dragonborn just means that it was the latest. The one that was just there...

Anyways, I firmly believe that The Last Dragonborn can have "Dragonborn" children.