Monarch
Mr @ Spotty M
Certainly sounds fluid.
The site quoted and jethro's usually share information I believe but as you say things are fluid and there might some confusion.
I assume with the seat-maps, as you can book your seat in advance then the flights will be sold as A320's and if at a later date they are changed to the 321 you will get an e-mail advising of the change?
Even with all the changes I am shocked at the scale of the reduction in the April schedule compared to 2012. Although I must admit the Gatwick April schedule it not that great so maybe more to do with an early Easter than lack of new aircraft.
Pete