I haven't heard anything about this release, although being in Canada, I was told by the accessory manager at my dealer that it tends to be available in the US before we get it.
Any word on what power it might offer? I'm hoping for similar gains for the 8TT that they get on the 6TT upgrade (384hp vs 300hp stock, 28% increase, so 400hp stock on the 8TT, add 28% = 512hp!).