I couldn't make any comment on the relocation of Easy Jet with not having been at work for a fortnight and thus no rumours have reached my ears.
However it is most certainly true that there has been a shift in passengers and from where they are coming from. Traditionally Bristol took a good number of customers from the South Wales area , that has changed and the shift is according to postcodes changing albeit only very slightly the other way with some Bristol folk tracking westbound to catch their flights. This I have no doubt is to do with the appalling access to Bristol airport and the extortionate car parking charges. Bristol as well will always suffer from its short runway and there is not a great deal that can be done about that.
Who knows, with the growth of Cardiff and Exeter maybe its not so far fetched to think that there could be a relocation of aircraft to accommodate the fare paying passengers.