This "last class of the year" talk needs to be clarified. None of these dates that have been discussed in the past have been the last class of the year. These dates are the last class that have been currently planned at this time.
As in, Atlas management has not planned one way or another on when the next class after May 30th will be. There are just too many variables to set a date on the next class at this time.
The way things are going around here, I do not believe that classes will stop anytime soon.