Michael
Thomson have continually changed the all inclusive package especially for the emerald, the idea I suppose is to get everyone on it as it is easier for them to administer.
Did you know that you can upgrade on board?
They don't advertise it but you can.
I often talk to my travel reps and they always advise to go in january, they also say its worth my while to go last minute but of course, I have to plan my leave well in advance if I want two weeks.
I will hopefully be booking in a couple of weeks and will let you know
Andy