I do believe you have anticipated Weiss's probable character arc in Volume 5.Given no other information, Weiss will attempt to contact Winter and work with her towards undertaking direct action. But then Ruby and friends will show up and change her entire perspective by the final episode. This seems likely for 3 reasons.1. Weiss is going to like seeing how her friends & team mates have progressed. Goofing-off moments aside, they have learned a lot and changed a lot for the better since she last saw them.2. Winter herself may tell Weiss to do what Weiss thinks is right, not what she thinks is right.3. Ironwood's own decision to close off the northern kingdom may come across as the wrong decision to Weiss. Weiss went to Beacon, not Atlas, and so she has learned to trust and respect people from other lands besides her own.