Part of the reason why the easyJet prices are higher on some dates are because this year all the people who had booked with BA/GB Airways have had seats pre-allocated to them with easyJet. As and when easyJet contact everyone to see if they still want their seats or a refund intsead, some prices may come down again, even in August. Out of interest the seats my sister-in-law booked with BA for 18 August for 2 weeks are still the same price as easyJet's are on the system now.
This means straight way that at peak periods (and July and August were already quite full) the first price that easyJet could offer now may already be quite high, which is why it has been mentioned above that they were coming out at £330.00 per person on some dates.
Re comments on accommodation 1). I hope it may persuade the odd hotel to stay open longer, or open earlier at least if they have central heating and a heated pool and 2). my worries are that it is nigh-on impossible to suddenly increase the numbers of beds in relation to the number of flights that will now operate. As has been said, many apartment blocks are empty, some for a few years after certain tour ops pulled out, and it may not be economical to open them up again.
But I agree that it is a positive step for Corfu.