Marketing in 2026: AI, Martech Agents, and the New Human Advantage

2026 will not reward more campaigns. It will reward marketers who harness AI, first party data, and bold creativity to deliver immediate, human value. From agentic martech stacks to hyper personalization and nostalgic remixes, here is what Martin Sorrell, Seth Godin, Rory Sutherland, Google, and leading martech voices say will really matter in 2026