Within the context of my PhD thesis, I investigated how German text simplification can be supported through machine learning methods. In the final chapter, I will discuss and summarize how my research has helped to facilitate future German text simplification research and how it has helped to narrow or close the research gaps and questions opened in Part I. I will consider each component of the text simplification workflow and review my findings of the contributions made by me and my co-authors in a comprehensive manner (see Figure 8.1). Furthermore, I will suggest potential directions for future research in the field of German text simplification.