"Basically, the new re categorization scheme, which applies to 2013 – 14 voyages and forward but not old ones, relates to ZONES on the ship from most desirable to least. Amidships being the most desirable, extreme fore and aft not. And then that crosses with deck groupings, which are most desirable to least. Most desirable there would be sleeping decks between other sleeping decks. You've GOT to look at the first graphic to see what I mean.
And then based upon these things, they've rezoned the ship from best two worst, or most popular to least to be more specific. So if you look at the second slide you'll see that “A” is the most desirable section of the ship. This would be amidships, no public decks above or below. Then categories will use letters like M for Mini, B for Balcony, D for Deluxe, O for Oceanview, I for inside followed by the zone letter.
So, the best balconies will be Category B (for balcony) and A (for most desirable amidships). So, I'd expect the new Category BA to be the very center section of Aloha, Baja and Caribe on the Caribbean Princess, as an example. Amidships Minis will be MA instead of AA, etc.
There is another mystery element as well. They will have numbers and not letters for specific cabins they consider ‘premium’. So, S1, S2 for some suites, although suites will still have their longer names like Penthouse and Owner's Suite, etc. I think they're going to nab some aft-facing minis and balconies with numbers as well, but they didn't say much about this. So, the premium numbering system was glossed over in the class and more details will need to be forthcoming. Other than suites, I'm not sure what else they dumped into those categories which will cost more than the lettered ones.
Without a deck plan, we can't really know exactly which cabins are in which new category. They are working on it. If I become enlightened, I will let you know.
As a side note, they didn't give square footage for the Royal's new Deluxe Balcony cabins, but they did say they have a full sized sofabed and amenities same as minis get now."