The IFA 2012 consumer electronics trade show is scheduled to start on August 31 in Berlin, Germany, but Sony has sent out invitations to a pre-show press conference, to be held on August 29.

Although the invite doesn’t give anything away, the event is likely to focus on mobile and therefore Sony’s Xperia range of smartphones, given that it’s sites concentrating on phones that have been sent an invitation.

There’s also the possibility we’ll see the successors to the Sony S and Sony P tablets, both of which were launched at the show this time last year.

Without any firm details on what Sony will reveal until the actual day, we can turn to some recent leaks to get an idea of what the company has planned.

Sony hasn’t been quiet on the smartphone front this year, launching the Xperia Miro and Tipo, plus the Xperia Sola, the Xperia U and many others; but aside from top-end devices like the Xperia S and Xperia Ion, one of the real gems went to Japan — the Xperia GX.

Initially known by its Hayabusa codename, the GX has a 4.6-inch touchscreen, a 1.5Ghz Snapdragon processor and a 13-megapixel camera. The phone had been the subject of several leaks, and was spotted on a Sony product roadmap for 2012, leading many to expect an international release.

Joining the Hayabusa on that roadmap was the LT30p Mint, another 13-megapixel monster equipped with a Snapdragon S4 processor, but with a 4.3-inch touchscreen instead. Mobile-Review.com has published a preview of the Mint, and the unit featured Android 4.0 Ice Cream Sandwich, plus a 1280 x 720 pixel screen resolution.

As for new tablets, Sony displayed two concepts at CES in January, the Hybrid and the Slate. The former had an 11-inch screen and a slide-out keyboard, while the latter boasted an unusual construction with a slide-out tabletop stand. At the time, the OS was unknown, but knowing what we do now, the Hybrid seems ideally suited to Windows 8.

Sony’s pre-IFA 2012 event starts at 4pm local time on Wednesday, August 29, when we’ll see whether any or none of the above products are launched.