Multimodal artificial intelligence (AI) is reshaping the software development landscape by extending coding assistance beyond text-based prompts into voice, image, video, and design-driven workflows. This study investigates how multimodal AI is influencing current development practices, the challenges it introduces, and what trends can be expected between 2025 and 2030. Using a mixed-method approach that combines literature synthesis with empirical analysis of 3,998 Stack Overflow posts (covering 3,297 questions and 701 answers), we examine developer sentiment, tool adoption, and emerging themes in community discourse. The findings indicate that while 67% of posts express positive sentiment, developers are increasingly focused on issues of trust, integration, and control, especially when AI systems interact with sensitive files or introduce unexpected behaviors.