What kind of jobs? Say we get real time translation between various languages. What will I do?

It means you can communicate with people from anywhere in the world and do business with them. Real time or not.

So whatever you do, now you have a larger market of potential customers, since your work in is not limited by language anymore.

Tourism is the largest economic sector on this planet. And high quality, cheap translations increase the reach explosively both for seller and customer.