Hey, I figured it out.

I just went though the booking system looking for cabins that start with "S" (Deck 15 is the Sun Deck).
Looks like two Owner's Suites, S709 and S714 (591 sq ft each).
And I had also read in Cruise News Daily that there was going to be new oceanviews as well, so I looked for some of those. I found two in Category CC S702 and S704 (171 sq ft each).
My guess is two big Owner's Suites on the two sides, and two big oceanviews facing over the back pool in the center. The CC's do have even numbers though, so they could be on the port side rather than the center. It'll be interesting to see!
~Suzy