They may have been saying that, but someone in the cancellation thread just got an early June Poly cancellation. Assuming that's true either:
They know they're not going to be in Phase 2 by then OR
They aren't opening the Poly for Phase 2 (If so, which are they opening?) OR
Many other possibilities. In any case, say "On the day phase 2 is announced, the following parks and resorts will be open "X,Y,Z" or... after Phase 2 is announced, it will take us [#] weeks to accomplish X,Y,Z at which point this will be open, this will be closed.