Souspotter96
As stated many times in the past,unless there was substantial airside investment ( apron,taxiway etc)at Southampton,then easy jet and any other potential operator with Airbus/Boeing equipment will not be able to launch expanded operations.Southampton is stuck with Flybe who fill the present needs for the airport.
I suspect that there will be little change and a leveling off of pax numbers.
Development down the road at Bournemouth would impact eventually on the long term future of Southampton airport.