*IF* EZY decide to pull out of STN their slots will get gobbled up by Jet2 who already wanted more aircraft based this summer then there is currently room for.
As LTNman says, the EZY operation at STN is almost twice the size of the LTN FR operation.
I can't see that being withdrawn either. Airlines will go/stay where they make money and EZY make plenty out of their 7 aircraft STN operation. Moving it all to SEN and losing the bar is a big risk they won't take.
As much as SEN fans would like to see 9 EZY tails on the ramp