Christians are promised that in the world to come ‘they will reign for ever and ever’ (Revelation 21:5). We will reign under Christ and with Christ. Reign over what? Over creation, as humans were always made and meant to (Genesis 1:26), but there is also the possibility we will reign over cities as a reward: ‘Well done, my good servant!’ his master replied. ‘Because you have been trustworthy in a very small matter, take charge of ten cities.’ (Luke 19:17). It sounds like there will be new cities in the new world and they will need mayors.