Oh right... It's been several years since I've read the last few books, and even longer on the rest, so I kind of forget what happens in the rest of the series outside of the big, general plotline. :lol
I don't think Moghedien would be in the Tower. We know from Book 7 that Mesaana is hiding there, and they'd probably want to avoid each other. I think this vision finally gets resolved in book 12.