easyJet have today announced expansion at Gatwick, with a number of routes including up to 5x daily to EDI. This will triple the size of easy's LGW operation.
This could potentially signal the start of a downward spiral for BA LGW if they are not careful.....competition makes existing routes unprofitable.....BA give up more routes / slots which are picked up by low-cost operators.....new routes started in competition with BA....etc.