I'm rereading the series and just started Leviathan Wakes again and noticed a potential foreshadowing of a certain ship from Book 6 (7?). Miller's alarm had been going off for the past ten minutes.…
When Stannis is done throwing the last leech into the fire and says "The usurper, Joffrey Baratheon", it cuts to Joffrey drinking wine at Tyrion and Sansa's wedding.... This could just be a pure coincidence but I thought it was pretty cool.