[Context and motivation] Personas are a well-known technique to represent a particular user type and stimulate software development. [Question/problem] Personas are often based on findings from ethnographic studies, and their creation can be time and effort intensive. Furthermore, validating the correctness of Personas created is an open issue. [Principal ideas/results] We advocate a data-driven approach that relies on analyzing various kinds of user data to create, validate and evolve Personas. [Contributions] In this research preview paper, we present our ongoing research. Particularly, we discuss the problem we want to address with our research, identify research questions, and discuss planned research contributions. Furthermore, we present initial research results as insights into an ongoing interview study that characterizes Persona usage in practice. Finally, we present fictitious usage scenarios of anticipated solutions.