Darul, You dodnt understand how product releases work. There is a lot of corporate secrecy regarding soon to be released products, so that the competition doesnt get a leg up on them.
Contact your Symantes sales rep, sign an NDA, and then you can get information regarding release dates for products that are not out yet. The information usually almost always cocmes from a Product Manager, and not from support (who have no clue), nor sales people (as they got it second hand to begin with).
Product managers dictate the timeline, development and engineering build it, and if all goes well, the roadmap follows the timeline... Then again, if you see any Symantec roadmap, the very first slide is a disclaimer that items are subject to change at anytime.
IMO, Symantec acquired MI5 to get this technology, and they are integrating it with DLP, and this takes time. This was more of a priority than virtualizing the gateway, which is a smaller market than you think. I see hundreds of accounts a month, most still use physical security devices, and few want or have a need to virtualize them.