It has happened a few times before that the final wave of a line didn't come up here to regular stores. Transitional OTC wave comes to mind as well.
LOL, understatement of the year there, here's the Canadian history lesson for modern:
POTF2 - last two waves never made it (RH Vader, etc.); also never saw the EU figures at retail
Commtech - two figures never made it locally, though they were found elsewhere
Episode I - last two waves - R2-B1, etc.
POTJ - last two waves (seeing a trend yet?)
Saga - everything after Djas Puhr or so - more than two waves
Post -OTC - final wave, though the first POTC wave came
ROTS - final 12.