Qantas and Jetstar have announced they will increase capacity on east coast routes by up to 25,800 seats per week during 2012/13.

 Qantas will add:
- 11 return services per week between Sydney and Melbourne from 9 July 2012
- 11 return services per week between Sydney and Brisbane from 23 August 2012

 Jetstar will add:
- 21 return services per week between Sydney and Melbourne from 16 August 2012
- Seven return services per week between Sydney and Adelaide from 15 November 2012
- Seven return services per week between Sydney and Ballina-Byron from 18 April 2013
- Seven return services per week between Sydney and the Gold Coast from 18 April 2013
- Three return services per week between Adelaide and the Gold Coast from 18 April 2013
- Four return services per week between Newcastle and the Gold Coast from 18 April 2013

The introduction of these services in 2012/13 will result in an increase of more than 496 000 additional Jetstar seats and 400,000 Qantas seats per year along the east coast.

http://www.qantas.com.au/travel/airlines/media-releases/may-2012/5401/global/en for full copy of Qantas media release.