I think if anyone it'll be Katara... maybe Jet, but probably not right away if at all. I won't speak for Ashena, but in my own estimation Katara would be on the same page as Yue when it comes to protecting what few options they have left. Aang is probably the greatest potential help to the rebellion that they've ever seen, but that means that putting him in danger is completely out of the question. I mean, think about it: If Aang dies, the next Avatar will be a waterbender. That could well result in serious, possibly fatal repercussions for the Water Tribe. Everyone knows what happened the last time the Fire Nation went seeking the Avatar... Aang was the only one left.<br/><br/>Beyond that, they don't know him. Until they get a read on him as a person, they don't know what sort of threat he might present. If they bring him over and he's still too brash and angry, he might take actions that could doom the rebellion even though he's trying to help.