Ed,
I got an email last month from John Snyder at WEM, and he said that they are beginning the design work soon. They probably will make enough from the Hood PE to cover the QM2 PE!
I imagine the set will have photoetched railing in 4, 5, 6, and 7 rail configurations, doors, doorknobs, champagne coolers, interiors for each stateroom, and drains and filters for the pools, knowing Peter Hall and the ludicrous amount of detail they put into their sets (I am only joking about everything in the list after doors).
If you're interested, email WEM. They're good folks who will answer any questions you have.
George