The family car will be sold in three bodystyles, as a three-door and five-door hatchback plus in a five-door estate specification.
A Sport FR trim and a Cupra hot hatch specification are both also reportedly on the cards for the 2013 Seat Leon.
The new Leon shares the same platform and most of its technology with the latest Audi A3 range. Changes from the previous Leon are expected to include a large, more practical and more luxurious cabin.
The extra luxury will particularly apply to high-end models with extra touches of leather and gadgets including Bluetooth and sat-nav.
A wide-ranging engine choice is planned for the 2013 Seat Leon, with five petrol units and four turbodiesels for customers to choose.
The list of petrol options includes a 1.2-litre TSI producing either 85bhp or 104bhp.
There will also be two 1.4 TSI units with either 121bhp or 138bhp. The 1.4 TSI features active cylinder management, which shuts down two cylinders on the engine whilst the car is at cruising speed in order to save fuel and reduce emissions.
The final petrol engine for the new Leon is a 178bhp 1.8-litre TSI engine.
The turbodiesel options include a 1.6-litre TDI with 89bhp or 104bhp. The Leon also gets a 2.0-litre TDI which produces either 148bhp or 181bhp.
Details on performance and pricing for the 2013 Seat Leon have yet to be confirmed, but more could be revealed at the Paris Motor Show soon.
The new Seat Leon will reach the UK in February 2013 when it’ll be available at Perrys Seat Dealership located in Aylsebury.