1. Three of the four DLCs have/will have central characters who we were introduced to in FNV. Dead Money had Elijah, who was mentioned several times in relation to his previous position as head of the Brotherhood's Mojave chapter. His fate was left vague. Honest Hearts had, of course, Joshua Graham. And we know that Lonesome Road heavily involves the courier Ulysses. But what about Old World Blues? Is there a character who we already know about that will be a key player in that? The pattern of the other DLCs says it's very possible.
2. One of the loose ends in HH is the origin of the children who find their way to Zion (somehow), are helped by the Survivalist, and become the Sorrows tribe. Where are they from, and will we find a link in OWB or LR? Or are they simply a call-out to Lord of the Flies or Mad Max 3 as many have speculated?
What do you think? And what are some other ideas?