How long will Hannah be around?

I really don't think Hannah is the sniper victim...because HH has said that it would be a "regular/beloved" character and that just doesn't ft with Hannah...because he basically says that he knows that fans aren't going to like her or even give her chance. It seems like it will be character that has been on this show for a while...And SN has said that Booth might be the one to "torpedo" his relationship with Hannah, unless he dumps Hannah, but then she gets shot.
Plus, I think Hannah is the one who has the minor operation in episode 5...because she got shot in Afghanistan and she had to have a fragment of a bullet removed from her leg...so would HH&Co. have her get shot twice? I'm sure we will get some angsty, "good boyfriend" moments of Booth, so why would they do it again? Honestly, I really think that Hannah is just a device to move B&B closer.