A brief outline from the Development Strategy to 2015:
"The preferred areas for apron extension will be to the west of Terminal 2 (including land currently used for car parking); to the east of Terminal 3 (requiring relocation of existing uses), in the vicinity of the current maintenance village and on land at Cloughbank Farm presently utilised as the Aviation Viewing Park.
T1: original capacity 2.5 million passengers, currently 11 million passengers. Planned: more check-in desks and improve/extend arrivals area. Possible redevelopment of the multi-storey car park
T2: original capacity of 6 million passengers – it’s now been raised to 7.3 million passengers. Planned extend pier and build a remote pier. Total capacity expected to be 18 million passengers
T3: current capacity 4.7 million passengers. Planned: expansion to the east of the terminal (losing a car park) but nothing set in concrete yet. Planned total capacity is expected to be 8.5 million passengers"