That date still makes sense in the context that it may be when the carrier announces pricing and when pre-orders may begin. Then, on October 29th, Microsoft unveils Windows Phone 8 (finally) in San Francisco, California before the whole world. The following weekend houses Sunday, the 4th of November which is consistent with previous AT&T new releases.
Pricing has still not leaked, possibly because it has not been decided on yet. Certainly there may be discussions as to whether the new Lumia 920 should have the same price point as when the 900 launched.
So, we know you are ready. Assuming the dates come through as rumored, what is the price point you think the Lumia 920 should have?