The EU Global Gateway, a €300 billion infrastructure investment strategy launched in December 2021, seeks to build sustainable and secure connections in the digital, energy and transport sectors and boost Europe's competitiveness and supply chain security across the world. What might the strategy look like in future? This paper presents four possible scenarios for the Global Gateway in 2030, based on survey responses from 30 policy experts: 'optimal gateway', 'failed gateway', 'corporate gateway' and 'public gateway'.