According to BGR, there is no way that RIM launched Bold 9900/9930 until September. They claim that they have hit up to multiple sources all claiming to wait until September.

We have confirmed with multiple sources that the BlackBerry Bold 9900 won’t be launching until September globally.

On the other hand they also write

While an announcement at BlackBerry World was inevitable, it still hurts to see RIM struggle to get devices out the door swiftly. RIM announced that the BlackBerry Bold 9900 would be available in the “summer” from carrier’s globally when the product was unveiled at BlackBerry World.

So until that we have to stay with the recent Bold i.e 9780.