I think that one of 2 things are happening since the initial projections of her being ready late summer allowing for that option.
1. They know it is delayed and are planning on starting sailing in January and given the weather it doesn't matter what he promised...maybe there will be a couple of 2 day trade event sailings but that's it
2. They are not 100% certain on the delivery date so they are releasing itineraries starting in January and once a delivery date is confirmed fall itineraries may be released.
While what you said was correct Mr. Bayley never said how many or how long the itineraries would be. I suspect that by make her debut there would have only been a couple of media / trade event sailings to introduce her and not actual revenue sailings