Oh yea man, expanding on au'na's time in Ruby City would be great! They might even discover they had similar friends or enemies (also thanks to Dissidia memories on ou'na's part!). She would probably try to be diplomatic about it, but secretly she'd want to know all about the Baralai stuff, esepcially ~what it felt like~ compared to her own feelings for Tidus in her current state! :3c

Totally down for Yuffie bonding as well, thanks to their experiences I think that it pushes those four in general closer on a significant level... Yuna was just sharing some of her thoughts about Yuffie with Cloud actually...!