Many SIGCSE attendees are either developing or using online educational tools, and all will benefit from better interoperability among these tools and better analysis of the click-stream data coming from those tools. New tools for analyzing big data leveraged by AI (e.g., deep learning for assessment) in turn improve both content and pedagogy, thus setting up a virtuous cycle fueling learning discoveries and leveraging innovation in AI: Online technologies → big data analysis → better online technologies. This NSF-supported workshop is the latest in a series of SPLICE workshops, and is a follow-up to our highly successful events at SIGCSE 2018, 2019, and 2023. SPLICE has received a second round of NSF funding. A key deliverable for this phase is the SPLICE-Portal, a dedicated socio-technical research infrastructure for Computing Education Research. Primary goals of this workshop are to drive forward the activities of various SPLICE Working Groups, and to refine our action plan to guide the next phase of the SPLICE-Porta. These workshops build upon our existing collaborations developed over the course of the project to engage more members of the community in tasks that will advance the project agenda.