If you are in k12, the answer is:
"Ben looked forward to discovering which route they would take and which unique places they might visit this year."
Hello. Your question is incomplete, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.
If the word, to which your question refers, is capable of foreshadowing something, it means that that word is advancing very important information about the plot in a subjunctive way, with the aim of promoting anxiety in the reader, stimulating curiosity, which will keep and will optimize reading.