English will remain as close to universal as any language. It is said that you can hear good English spoken all over the world, with the exception of two places, the UK and the USA. English has become standard in business and in aviation. French is the language of diplomacy, law, and tourism (I used it often to communicate with Arabs in the Middle East [with variable success]). Latin is still the language of pharmacy, allowing you to get a prescription filled in any country, no matter where it was written. There have been at least two attempts to create a universal language. Neither got any traction.