I'm purely guessing here but I'm thinking the sparrows will proclaim Stanis king of westeros. They seem to be on a truely righteous kick imprisoning both queens and all. I'm guessing they may attempt to follow the true lines of inheritance and proclaim stanis. Of course there is that whole worshiping of Rholor problem but I think they will at least attempt to sway him back to the traditional gods.
I doubt Stannis would be receptive though leading me to think that the sparrows would then declare one of Roberts bastards. This would explain why martin has developed some of these lesser characters to the extent that he has. King Gendry? King Edric storm? The prospect of Gendry leading an army of sparrows against Stannis or the others is far fetched but rather amuseing. Also it woulgive Arya someone to work for once she gets back and starts shanking everyone who looks at her funny. (Not that she can see them or anything)
I doubt Stannis would be receptive though leading me to think that the sparrows would then declare one of Roberts bastards. This would explain why martin has developed some of these lesser characters to the extent that he has. King Gendry? King Edric storm? The prospect of Gendry leading an army of sparrows against Stannis or the others is far fetched but rather amuseing. Also it woulgive Arya someone to work for once she gets back and starts shanking everyone who looks at her funny. (Not that she can see them or anything)