Glad to see that the new Jedi council sets will be including slivers of the centre section of the floor. This was reported from another site earlier in the week and the one with Qui-Gon has shown up as a mock-up in the OTC packaging.
If you look at the image, look at the piece underneath the curved portion of the base on which the chairs are attached. That piece appears to be elevating the main piece unlike the cardboard used in the SAGA issues.
Here's the piece in place, as it appears on eBay.