I believe he is coming back. I just saw last weeks Entertainment magazine and they showed a picture of a black man who will be accompanying Ana Lucia when they are found. My guess is that this black guy is Rose's husband. Rose did say that he wasn't dead.
from the promo pics its looks like there are only three other survivors: ana-lucia, libby .. and the mysterious island man .. from the name of his character it doesn't sound like he was aboard the flight!
sounds like these three would have had rather a rough time on their own!
yea, is that ab(however you spell his name) the guy from OZ...hes playing a mysterious nigerian....either its a great coincidance that Rose's husband is also nigerian, or he's part of the plane crash a long time before...frankly, either one would be cool