Not at all. Importance of Language is always a depending on many factors. So only those languages will be more important, whose other factors will grow with time.

No. Languages come and go. Just like ice ages.

No. There's a reason it's called the "lingua franca." Just like French was once the world's most important language, English is now, but it will go out of style.

no lanuage come and language go ..the seasons change and so will it alough it stays strong and powerful nowadays . i believe that it will change in the future.

It is today, but who knows one day, another language will replace English. Languages such as Mandarin Chinese and Spanish are becoming so popular today, so to French and German (just to name a few). But I personally think English will remain an international for the next several years.