Will you return to Europe? I fly to the UK sometimes multiple times a year and spend weeks at a time there. While I did not do that for my upcoming trip since I found a great price, I was considering a one-way redemption there and then buying a RT from somewhere in the UK or a nearby EU city, and making the return about when I planned to go back. Chances are a significant schedule change would occur so if I was off by a day or so, I would get to change free. Many people do this. And I still will if it works out.