I agree with Ensign Paris, it is most likely a 17" LCD wich is closer to a 19" CRT than a 17" CRT.
I do suspect this will eventually be coming. If it is, they may be playing with it at apple as we speak. But it will come down to price point before they release it. I am shure that a 17" LCD is possible right now. But who will pay for that???
Once marketing can get a price from design and manufacturing that is low enough for consumers....then we will see it on the shelves.
Maybe it will come as a BTO.