a 12 hour sector,then minimum rest,the company has to be joking.as a one off due a previous delay,tech problem,then maybe.to roster a scheduled 12 hour flight with minimum rest has to be asking for trouble.no slack built in for unforseen problems and crew dreading the prospect of being rostered to operate the duty.i suggest you make your concerns known to crewing well in advance of the scheduling being decided for the winter schedules.