The document outlines the roadmap for Aria, which aims to enhance support for TOSCA by simplifying application development and ensuring interoperability across orchestration vendors. It details the components of Aria, including a library, CLI tool, SDK, and a workflow engine, while also highlighting phases for its integration with Cloudify and support for various TOSCA profiles. The roadmap includes goals for modular DSL parsing, tosca workflow execution, and enhanced plugin functionality to facilitate cloud orchestration and application development.