王绍璠的回答：

you have the world before you 也可以直接说 Wish you a good future. I wish you a promising /prosperous future.

杨明晰的回答：

Splendid prospects or your future is full of gold

孙月的回答：

前程似锦：have brilliant/excellent prospects 或：have a bright future

侯晶晶的回答：

you have the world before you