Nothing to add to the above advice about hotels and ancillary bookings. But FYI there is an ongoing thread discussing this particular fare:
http://www.flyertalk.com/forum/milea...-return-6.html
You will likely see folks starting to post there if/when their tickets are canceled, or if the airline makes an overt statement that they will or won't honor the tickets (airlines won't always make an announcement either way but sometimes they will), etc. Of course others' experiences don't always guarantee that the same result will occur for your ticket and anything could happen even up until the time you're in the middle of traveling...but it may give you a heads-up FWIW.