Language is constantly evolving, English itself is a result from loads of smaller languages merging and evolving over time, what we're starting to see now is the beginnings of a global language - at the moment, it seems like this is English taking over the world, but, in the future, we'll be seeing Indian and Chinese words influencing over every-day speak.
Language is merely a means of communication, and it shouldn't have any kind of nationalism attached. There's a reason why efforts to try and protect dying languages aren't brilliantly successful, and why purposefully-created languages such as Esperanto fail to take off in any meaningful way.