The keynote at BizTalk Summit 2015 highlighted Microsoft's Azure integration services, emphasizing the ease of use, scalability, and rich ecosystem of tools for building applications. Key offerings include Azure App Service, which integrates API apps, web apps, and mobile services, alongside enhancements for automation with Logic Apps. The roadmap focuses on data-driven development, community engagement, and upcoming releases, aiming to strengthen the integration capabilities and features of Azure services.