They are hired to do a job. It's their job.
Those who hired them had the plan to make this game.
And those people look at the game with a "how to make most money of it".
Blizzard, are the developers. They have the creator of the lore and soul of the vast WarCraft universe, behind the game as one of the many developers.
This is how they continue to build upon the same game and same engine with better gameplay and better performance and better artwork and 10 years forward.. is now.. new models that capture the very essence of their original self.
Their trademark is soonTM. When it is done.
I DO NOT get that vibe from these developers and corporated business men. Remember that the bosses of Blizzard is developers while here.. they are not. Look it up. They hire developes to do what they think is best for the game with their non-game mind but production-cost-profit mind.
It is SHOCKING that the beta.. 2 months before release is under NDA!
But also very revealing that they are afraid of people, community, scarying away pre-orders.
No MMO has NDA this long before release.