This document introduces a survey to gather expert opinions on envisioning the future of geospatial technologies (GISTs) and free and open source software for geography (FOSS4G) by the year 2020 and beyond. The objective is to consider challenges and needs in shaping the years ahead. Experts are asked to think beyond today's conventional wisdom and provide expansive, creative insights in response to all questions. Information collected will be kept confidential and contributors will be acknowledged after the conclusion of the foresight study. The results will help understand challenges for the future of GISTs.