International Internships cannot guarantee any sort of employment extension outside of your program dates. However, it may work in your favor, if the timing is right, that you are offered to stay on board. Some companies or organizations seek out international interns specifically to fill a void, whether short term or long term. Others may just be willing to add an extra staff for the mutual learning experience both parties will receive. Either way, networking possibilities should be plenty and through your persistency you may have a good chance at finding something abroad based on your internship experience, even after you return.