Key trends from Cannes Lions include embracing RMNs for data and attribution capabilities and scaling audience reach via partnerships on platforms like CTV. Publishers are prioritizing deeper funnel engagements and urging marketers to focus on purchase completion metrics. Sustainability, guided by the Global Alliance for Responsible Media, is prompting the adoption of eco-friendly practices. Cultural convergence, seen in installations like Stagwell's "Sport Beach," suggests leveraging sports fandom for audience engagement.