I believe that once the Luton terminal extensions/expansions have been completed in June/July the security processing capacity will be doubled and so in theory, the time taken to pass through should be halved. Not sure if a 'fast track' channel will also become available for business club card holders.
From what information is currently available, the terminal building facilities at Luton will compare very favourably with Gatwick's North Terminal and Birmingham's although there won't yet be air bridges provided (neither easyJet, Wizz or Ryanair favour these anyway as their turnaround times can then be lengthened).
The two issues that will remain to cause difficulty will be the local road access and the potential for 'local' air traffic control delays, both caused by lack of updated infrastructure (roads & airspace) trying to cope with significantly more traffic (vehicles & aircraft).
The M1 widening and dual carriageway to the Airport that LTNman speaks about won't improve access to/from the east via the A1M or to/from the west i.e. Aylesbury/Oxford areas.
Still, maybe the DfT as it's done for Stansted, will put taxpayers' money into some road improvements in these areas!
Pigs of course, might also fly...
