The more languages you know the better is for you. I think you should study one of Oriental languages, for example Arabic or Persian, Japanese. I study Russian and German. I am already attending German courses. Do you speak French fluently? What second language are you going to choose? I'll be glad if you choose Japanese. It's a very difficult language but Japan is a very developed country with high technology and industry.
Have I convinced you to choose Japanese? Wish you good luck.