I booked an ex-OSL RTW where the first flight is OSL-DOH in the fall. A few weeks ago QR reduced the frequency of the flight from daily to 4x week, and my flight was cancelled, but I was able to shift it and the following flight to be one day later. The trip is structured with multiple breaks of a few months, with positioning flights, so pushing the first two flights one day later only affected one positioning flight and nothing else. So not a big deal in my case.