Complex sentence: Organisers of the airshow stated that the new regulations in place would have "severely limited" some of the displays of the jet aircraft, including the Swedish Air Force Historic Flight and the Avro Vulcan XH558, with 2015 being the Vulcan's last ever display season.
Split into simpler sentences: Organisers of the airshow stated that the new regulations in place would have "severely limited" some of the displays of the jet aircraft. Displays scheduled included those by the Swedish Air Force Historic Flight, and the Avro Vulcan XH558, with 2015 being the Vulcan's last ever display season.