Toulouse,
There are a number of anomolies in the timetable for the winter operation. If you look at Cork-Amsterdam, it shows this going back to it's rightful frequency of twice a day on 4 days a week. Now, try booking the evening flights.. impossible!
I would trust the booking engine far more than the timetable personally.
Hope this helps.
Regarding the fleet, we were told two weeks ago that EI was going for a combo of 777/7E7.. now they are holding talks with both manufacturers. This is all just WW going through the motions, and I guess as such we should not read too much into it.