Design a comprehensive framework for creating a complex non-linear narrative with multiple storylines that intersect and influence each other. Your framework should include: 1) A structural planning system for tracking multiple threads and their intersections, 2) Techniques for managing time and perspective shifts without confusing readers, 3) Methods for developing themes that resonate across storylines, 4) Approaches to character development when characters appear in multiple threads with different relationships to timelines, 5) Pacing strategies that balance the advancement of multiple storylines. Discuss how to maintain reader engagement while managing narrative complexity and how to reveal information strategically across different threads.