(FILES) In this file photo taken on October 27, 2016 Pedestrians walking through Waterloo Bridge with the skyline of the City of London in the background on October 27, 2016. - Leaders at the Guildhall in the heart of the London's powerhouse financial district fretted over a braindrain when the country voted for Brexit, but are now over two years on in October 2018 convinced of one thing: the City will win. (Photo by Daniel LEAL-OLIVAS / AFP)