M365 Copilot Agent Mode GA & Monetization Crisis

Copilot app merger confirmed with hard deadlines (Aug 18), Deep Research going paid, Mico retired. 30M paid seats disclosed. Cost discipline and governance challenges persist. Minor consolidation: Excel COPILOT() function retiring Sep 14; Copilot Pro subscription ending Aug 1, 2026. New: Outlook Copilot writing partner rollout (mid-July to end of August 2026) – AI embedded directly into email compose, no admin changes required.