As an ex-cadet I have to say I hold no grudge against EI for what they had to do post Sept 11th.
I think the decision that each of the 47 cadets makes with regard to returning to EI however, will be mainly based on where they are employed at the time and whether the offer from EI is attractive enough.
From the grapvine, there's plenty of expansion planned in the company with the probability of a few more 330's coming online soon and 777's followed by 787's in the future.