EDIT: The only way dwarves will be the secret to dragonslaying is if it turns out that dragons have a dwarf-allergy, and our first inevitable dead lizard comes from one of them exploding after eating Tyrion.
Then again, Tyrion would totally take a knee to Dany the Conqueror if she promised to roast Tywin and Cersei slowly enough.
SECOND EDIT: I just realized that I feel like Tyrion has plot armor here. I'm taking it for granted that he somehow lives....wonder if it's denial.
whatever happened to that shape shifter dude who stealth killed those 3 people? he should make a comeback
And what if he already has?
I'm kind of expecting this to happen eventually. I just wonder whether it'll be a quick reveal along the lines of "Arya meets a suspicious dude and finds out it's her old 'friend' a couple scenes later" or more of a long con.
I guess he could have also just been a plot device to save arya's butt, but I expect stuff more complicated than that from game of thrones. Even if it isn't the same faceless man doing it, there's gotta be a future appearance of some faceless man later.
Braavos is on Essos, same as Slaver's Bay, right? Maybe if Dany takes too long to get to Westeros, the plot will wind up coming to her instead. That'll give stuff like the faceless men more time to mess with us.