Avid have finally done it. On the Avid Store there is now a product which enables you to upgrade from DV Toolkit 2 to Complete Production Toolkit for £529 or $799.
Create even larger sessions and get many of the same features of Pro Tools|HD* systems with the Complete Production Toolkit, a powerful expansion option for Pro Tools software. Have the flexibility to work on studio-created sessions anywhere using just your computer or Pro Tools mobile rig. Get the same high Pro Tools|HD track counts, full session compatibility, and support for all track types, including VCA groups. And enhance your production with 7.1 surround mixing, advanced editing and automation tools, and more.