All valid points.When it comes to sampling, why not adding akai or some other well known format for user samples.
Also we didn't hear new drum kits.Those once in demos are audio styles.And I believe for audio styles there is only 128 mb.
First impression for me is I think this is going to be same thing like with T3.Couple years later they came out with T4.

They said release date is today.But, there are too many questions unanswered.
Clearly Yamaha is going for a quick sale like this.The cat is still in the bag even though we saw a glimps of it.