The thing is I don't think this is all of it. Either that or I'm in denial.
But my reason for thinking this is on Wednesday when the Community Day guys thought they could post their Be A GM impressions, they said they had to confirm with EA so they don't accidentally leak "everything".
I get the feeling there's still more, but only EA and the CD guys would know if that's the case. I tried asking the EA NHL Twitter account if this blog is all of the improvements, but who knows if I'll get an answer.