Oh, OK, thanks...wasn't sure if they basically "locked in" award flights once they are announced, and that's it.
The itinerary right now actually looks doable now that I look at it again...the one thing that's killing me is that the return flight from MIA to YEG includes a 3-hour flight on rouge with its 29" pitch seats (I'm 6' 4"). I'm tempted to just book that flight separately on expedia or something
And unfortunately all the other possible departure points in the area (FLL, PBI) all use the same rouge flights out