Apple just can't keep secrets anymore...
The Cupertino giant has this week sent out official US press invites for a 9 September launch event with the tagline: "It's only rock and roll, but we like it." Yes, that's the same long speculated upon 9 September date when Apple is expected to announce new iPods. For the record, I very much doubt we'll see any sign of an 'iTablet' or the ubiquitous Beatles' iTunes deal (Apple adapted Rolling Stone lyrics!).
As for the iPods themselves, well we've again seen enough leaks to get the general idea of where they are headed. The third generation iPod touch line (it's not an iTouch people!) will get cheaper, there will undoubtedly be a new 64GB flagship model, they'll get integrated cameras with video (either on par with the iPhone 3GS or superior to keep up a sales differentiator) and the same faster, more battery efficient ARM Cortex-A8 processor as the 3GS.
New iPod nanos? Possibly, but they aren't the rumour magnets they once were. The a new controversial iPod shuffle? I doubt it so soon, though it could get a long overdue capacity jump up to 8GB which would give the new Sansa Clip+ some mildly better competition. The iPod Classic? Hard disk players are on their way out at Apple. Whether that will be confirmed this year or not, I don't know.
So I'd expect mild interest, but nothing overly earth shattering.