PMP Practice: Create an Integrated Project Management Plan

Nova Abernathy-Cruz is leading an agile transformation for Binary Chameleon Inc, a mobile gaming studio developing a multiplayer battle royale game. The product owner wants a detailed six-month roadmap with fixed feature commitments for an investor presentation, while the development team insists they can only reliably plan two sprints ahead due to rapidly changing player feedback from their early access beta program. The team's velocity has stabilized over the past four sprints, and they have historical data showing consistent throughput. The investor presentation is in three weeks, and the product owner is pressuring Nova to lock down specific features and dates. Which approach would be MOST effective for developing the integrated project plan?