My undergraduate major and post graduate major are both International Trade, From my point of view, a further study of this major for a post graduate course has the priority over anything else if possible, including a decent job in a pretty huge transnational corporration.
What you'll learn is not the trade theories itself, nor the reeducation as you have in the undergraduate period, but the way to tucth the underlying aspects underneath the economic phenomena.
The more you learned,the more you feel the subtle the divercification of majors of economics. In fact, you are a student of Applied Economics, don't bar yourself just in the grid of International Trade.