Yes they are still doing the presentations at BLT at 1pm each aftrenoon. You can sign up to go at any
DVC kiosk in the parks or resorts. You can also call from your resort phone to set up attending the presentation. We were just there for one last week. The only rooms that were on the tour are a two bedroom. It is a study and a one bedroom opened up to demonstrate a studio, one bedroom or two bedroom. I would think your best bet for seeing a grand villa would be to ask at the front desk. If they have one unoccupied or waiting for check in and have the time they should show it to you. Of course there may not be one available to show, but you won't know if you don't ask.