The Sitecore User Group meetup in September 2016 covered various topics including personalization strategies, the new Path Analyzer tool, and the limitations of Sitecore FXM for analytics on non-Sitecore sites. Discussions highlighted the need for better integration between marketing and development, especially concerning mobile considerations, and the move towards a microservices architecture for publishing. Notable sessions included incorporating Google Analytics into Sitecore personalization and the introduction of xConnect as a unified API for experience data collection.