Yesterday Steelseries introduced the 7H headset on Cebit 2010 (Hannover). The 7H headset will be a heavily pimped and upgraded 5H v2 and it looks great. As with the 5H v2 you will be able to take the headset apart for easy transport, you'll have passive noise reduction and have a retractable microphone.
In addition to the old features you can expect better sound thanks to the new 50mm drivers and the choice between soft leather ear-pads or the classic cloth ear-pads. As usual you will have an analogue and a USB edition (with 7.1 virtual surround sound which will sound even better thanks to the improved soundscape).