Arya might be Eragons Sister ?

Maybe Christopher Paolini is going to follow a Star Wars trend and make Arya, Eragons Sister.

Maybe Brom and Islanzadi had a fling at one point.

Some clues in the story could point to that.

1. Angela foretold an epic romance that might not have a happy ending. (One sided Romance)
2. Brom was given the Yawe ring, by Islanzadi and she was sad at his death.
3. When Eragon in Eldest made the Fairth, Oromis said Eragon and Arya could not be.
4. Paolini hint at Eastcroft in Brisingr (She is not alone for she is my sister ?)
5. Paolini hint in Geneology chapter of Brisingr when Eragon learned Brom was his father he asked
"Do I have any other siblings you are not telling me about", Oromis did not answer that.


I hope it does not turn out to be this, I would like to see Arya and Eragon get together.
I think it would kill the story somewhat if this happend