How to deploy and flexibly manage complex multi-service applications in the cloud is one of the emerging problems in the cloud era. The OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) [1] aims at contributing to solve this problem by providing a language to describe and manage complex cloud applications in a portable, vendor-agnostic way. The objective of this paper is twofold: To provide a compact and easy-to-access introduction to TOSCA, and to discuss possible research directions for TOSCA.