Nope, not going to book inaugural sailing, Maybe same year, but I am not going on the ship while the crew gets used to the new space and the ships kinks being addressed. Remember the time the Magic's plumbing stopped working? Or the paint and varnish wasn't completed? Or that time when carpets were being placed down on the Fantasy after her dry dock?
One of the reason that your service is so good on Disney is that the crew knows their roles and are efficient. They'll be less so when they haven't cooked the new restaurants dishes for 4000 people 30 times. The stage show will only have been practiced so manytimes.
I get it. I am excited too. But not enough to deal with all the video bloggers, a ship with unknowns, and a crew training period. The ship will be in service for many years. I'll get there eventually. I'm not a person who will needs to flex on others by saying I was on a "first sailing".