The BFI have released a few more details about the preview screening of "Asylum of the Daleks" on Tuesday 14 August 2012. Their preview reads:
The Doctor’s back! He’s joined by his trusted companions, the Ponds, and the three find themselves in an extremely precarious situation, where they come face to face with the Doctor’s oldest and most dangerous enemy… the Daleks. Catch the exclusive screening of the explosive new episode followed by a Q&A with writer Steven Moffat – recent recipient of the BAFTA Special Award – and members of the cast and crew. (Final panel to be confirmed).
So, we definitely get the Moff at the Q&A. The ticket office opens at 11.30am on 10 July 2012 for non-members and tickets cost £13.80, concs £10.30 (Members pay £1.50 less).