I think this is very likely if Pep leaves. Young, no stranger to winning, already won a title, did very well in the UCL, would've progressed further if not for Araujo losing his head, and plays the exact football CFG wants.
If Xavi doesn't take up a job for a year, I really think our hierarchy might go for him. Ex-Barca, so Txiki and co. would know him and Xavi would be around familiar faces. He's a tad more fiery than Pep but I personally like that in coaches. Pep would probably recommend him too.