The Crown Prosecution Service Said that it would not make a decision this month on whether to bring criminal charges against Andy Hill, the pilot of the Hawker Hunter which crashed at the Shoreham air show.
The CPS informed the West Sussex coroner Penelope Schofield, who has postponed the next pre-inquest review into the 11 deaths in August 2015 as a result.
The pre-inquest review has been rescheduled for Monday 26 March and the families have been informed of the new date.
Ms Schofield described the decision to postpone as regrettable but said that, with no decision from the CPS, little progress could be made.
She indicated that she was still working towards holding the full inquest in the autumn if no criminal charges are brought. The inquest may have to be suspended if the CPS decides to bring criminal charges.
A 17-month investigation by the Air Accidents Investigation Branch found that Mr Hill was flying the 1955 Hawker Hunter plane too slowly and too low during a loop the loop which ended with the jet plunging on to the A27.
It also found that the organisers had failed to take adequate measures to mitigate the effects of a crash outside the air show boundary. The air show has not been held since.
The AAIB made a total of 32 safety recommendations for the Civil Aviation Authority, including 10 in the final report, published in March 2016.
The 11 who died in the air crash were
Maurice Abrahams, 76, of Brighton
Dylan Archer, 42, of Brighton
Tony Brightwell, 53, of Hove
Matt Grimstone, 23, of Brighton
Matt Jones, 24, of Littlehampton
Graham Mallinson, 72, of Newick
Daniele Polito, 23, of Goring
Mark Reeves, 53, of Seaford
Jacob Schilt, 23, of Brighton
Richard Smith, 26, of Hove
Mark Trussler, 54, of Worthing