This document presents four scenarios for the future of London in 2050 that vary based on different priorities and levels of decentralization. The scenarios are: 15-Minute London which prioritizes local communities and net zero emissions by 2030; Londependence which gives new powers to London government through federalism; London Megacapital which maximizes economic growth through deregulation and expansion; and Safety First London which focuses on public health, security and resilience in response to the COVID-19 pandemic. Each scenario outlines the key changes, impacts, and a totemic project example for London by 2050.