rickon's story is a shaggydog story? can you explain more how his story fits into that framework?
A shaggy dog story, for the unfamiliar, is a kind of joke wherein the (deeply meta) humor derives from the lack of punchline. They’re typically meandering and long-winded, creating suspense not with the content of the story itself but the sense of a Chekov’s gun waiting to fire: this has to pay off! The joke is that it doesn’t. The story just ends, usually with an anticlimax or non sequitur, and the laughter comes from the realization of how long the storyteller had you on the hook.
And that sure sounds like Rickon and Shaggydog to me! IMO it’s some of the least subtle foreshadowing in the series, if you go in knowing what a shaggy dog story is.