Most rumors have some shred of truth to them so we’ll see where that gets us with this post. iTunes 9 is allegedly supposed to have some sort of Blu-Ray support. If I were to guess, I would say that it is some sort of framework for upcoming Macs that could have Blu-Ray drives in them or for PC’s that have them already. Other guesses could include digital copies of Blu-Ray movie purchases and or for using interactive content.
As far as app organization, there will be the ability to visually organize applications and that it will somehow integrate social networking sites such as Facebook, Twitter, and Last.fm. My guess on that would offer the notion that it would update your status with iTunes purchases or what you’re currently listening to.
Early September should bring these rumors to light as last year introduced iTunes 8 as well as new iPod models. That makes sense for this year because the free iPod Touch promotion ends on September 8th. Expect Apple truth to see due diligence on September 9th.