What about the 160-seat C-Series (CS300)? Similar capacity to A319 with
great performance. Bet Easy could get a great volume deal with
Bombardier...
I've heard from a few Bombardier employees that EZY have been looking at the C Series concept. Of course you would expect them to be looking at it for a range of reasons, not least keeping other manufacturers on their toes.
Given the smaller size of the C Series compared to 737 or 320 family, it could be a good fit for easyJet, yes it is not the text book approach for typical low cost airline, i.e. one type, but easyJet are not the text book case, e.g. strategy of using primary airports ('convenient airports) as opposed to flying to remote or secondary airports.
The C series could open up a whole range of routes to easyJet that currently are not feasible at frequency with airbus size aircraft. This could be yet another dimension to the easyJet model.
EI-BUD