I'm fine with the PHB classes. They can even take another couple years before releasing.
The only thing that I'll never understand is the releasing classes and updating the first act sets them back on finishing the game... all of that is part of the final game, yeah? Like I've said a hundred times. They need to prioritize getting the base stuff out first since it can all impact later act layouts, world building, quests, etc.
Narrative, quest branching, general planning and locations can be done in reverse, but everything else?
Rather, what takes the most time is cutting out what shouldn't be found in EA.
It isnt surprising that classes dont have high priority.
It is more important that all content is completed than adding another class that will have little impact on the rest of the game.
Creating locations, quests or models is much more time consuming than a new class.
Another thing is that they certainly have most, if not all, specific dialog lines for each class.