The dominant position of English as an international language seems to create controversy in certain circles. Some French people for example, resent the increasing importance of English in the European community, and Claude Hagège is but one spokesman for this point of view. French used to be the language of diplomacy and the preferred language of international exchange. Educated people in Europe, as well as the Americas, Africa, Asia and the Middle East were proud to speak French. This is much less so the case today.
The Chinese government is promoting the teaching of Mandarin around the world, through its Confucius Institute network, in order to establish Chinese as the new international language. Yet the difficulty of writing Chinese characters, and the tonal nature of the language, make it unlikely the Chinese will become a preferred language of exchange for people who are not native speakers of Chinese.
To some, the widespread use of English is seen as advancing the political agenda of the English-speaking world. Esperanto, is offered up as an alternative, as a politically neutral international language. It also has the advantage of being quite rationally constructed and easy to learn, apparently.
Often, when I read or hear French or Mandarin or Russian or some other language I have learned, I reflect on the natural elegance and power of that language. Each language is a master-piece of human creativity, having evolved naturally during the course of centuries. In that sense, all are equally valuable and sophisticated in my view. Some are less useful than others, however.
The use of English as a highly convenient means of international communication is not likely to change in the foreseeable future. The relative power and influence of the United States and Britain will continue to decline. This will not, however, make English less useful. It will just make the political argument against English less relevant.
At the same time, in a shrinking world, I expect to see an increasing interest in learning languages, major regional languages, minor languages, threatened languages, artificial languages, all languages. The recent Polyglot Conference in Budapest is but one example of this.
The Internet makes it easier to learn languages, in ways that were not possible before. It makes it easier to connect with people who speak different languages. The future of language learning is bright, but the role of English as the main international language is unlikely to change.