Board Thread:Spoilers!/@comment-27060727-20160824022100/@comment-24674051-20160825182916

I wouldn't say irrelevent. We know much of the stories of Snowing (after they meet), we have a lot of Regina and Rumple, and we have bits of Emma, Henry, Killian, Zelena, and Belle. But there is more on the latter group that could be explored, and also more of David and Snow prior to their meeting. and anything explored will obviously relate to any interactions they had with characters being introduced.

As will likely be the case with this episode (hint, let's get back on topic). The title suggests something with Water, and therefore most likely a Killian centric. The questions are who is the character introduced, and what is the issue that is driving the story? and a tertiary question might be could it involve any other main (doubtful, particularly in David's case, but we'll see).