I can't confirm or deny this rumour as I don't work for them but when you think about it the old "Slugs" won't last forever. Some of them must be nearly 25-30 years old already. I had heard a rumour of RJ's being bought/leased in but a A318/319 would be a good move for expanding capacity on their routes. It would save a lot of money on maintenance & spare parts but on the downside the monthly leasing costs for 1 A319 could be as much as 3 146's so it is a high cost move . To pay for an A/C like that you would need to be doing holiday charters at night & scheduled service all day keeping the A/C in use 24/7 in order to turn a profit.