The author of the video is heard saying he just got the new KORD and goes on to say that it's compatible with DD's Chicago X. I even asked him in the comments how'd he get the new KORD and he says FSDT gave him the update (which it's not an update, but...)
I think the video author was just confused because, the current O'Hare, which is the 2011 version, has an installer version which is currently at 2.5.0.5, simply because it has been updated many times over the years, but we then decided to call the new upcoming version "O'Hare V2", simply because we didn't felt the incremental updates we made on the old O'Hare really deserved a "V2" title. It's still the old O'Hare, originally made in 2008.
I'll try making some comparison screenshot between the current O'Hare and the new one, and the difference is obvious. Not just PBR, but the modeling is totally different.