tl;dr: The updated MCP roadmap focuses on five priority areas: agentic messaging primitives (server-initiated events, maturing Tasks), unifying on HTTP-native transport (including Streamable HTTP over stdio for local servers), agent identity/enterprise security (DPoP, Workload Identity Federation, token exchange), improved tool-calling primitives with progressive discovery to handle large tool catalogs, and better SDK developer experience. This follows the 2026-07-28 release, which removed protocol-level sessions for horizontal scaling, reworked Tasks as an extension, and added authorization improvements. SEPs within these priority areas get expedited review.