Recently, deep learning methods have been increasingly applied on spoken language technologies, including signal processing, language understanding and generation, dialogue management, as well as joint optimisations of these (end-to-end learning). However, such methods still have limitations and it is not yet clear that deep learning and joint optimisation is the key to the future. Encompassing the current deep learning trends and traditional knowledge-based methods, SLT's 2020 main theme will be around "Spoken language technologies: deep learning and beyond".