The A320 fleet is extremely new; the four original A320s were only delivered in 1Q01, but the current order is being delivered right now, so they're very new indeed. I think about six of them have been delivered, out of 17 on order.
The A321 fleet dates back to around 98/99.
The A330 is certainly the front runner, but I think it would be a big mistake for Airbus to count these particular chickens. Boeing knows that EI
is going to be expanding its long haul fleet very considerably and wants to be a partner in this. They want the new fleet from 2008, by which time the 7E7 will be entering service; do they want to start taking delivery in 2008 of an aircraft which will be outclassed? Don't get me wrong, I like the 332, but I think the 7E7 could serve EI
very well; I'm not convinced by the A350. Sounds like a bit of a spoiler to me.