Although there might be two firmwares for us, i'm not 100% on this but it could be.
One enabling external bd-rom playback with Cinavia
One disabling external bd-rom playback without Cinavia
In the article it says..
"I also gave them a solution which would continue to keep all users happy while also implementing Cinavia. It is going to be personally interesting for me to see whether they are going to act upon that idea further. (The details will have to remain secret till I see what Netgear decides to do with this new DRM mechanism)."