This is just a fun idea I came up a while ago. What if after the first duel with the Dragonborn, he steals all your dragon souls and hinders your ability to shout, and so you must travel to Apocrypha in order to retrieve the knowledge you've lost, or maybe you have to go to Apocrypha to learn the shout in order steal the thu'um back from Hipsterborn. Sounds kind of intriguing?