Assuming EZY isn't about to open a SOU base in 2019, it will rely on other bases in the network for any new routes out of SOU.
EZY currently has 11 UK bases (LGW, LTN, STN, SEN, BRS, MAN, LPL, NCL, EDI, GLA & BFS) as well as 7 other UK airports they serve: SOU, BOH, BHX, INV, ABZ, IOM & JER
The routes from these UK non-easyjet bases are as follows:
SOU: GVA
BOH: GVA
BHX: BFS, GVA, GNB
INV: LGW, LTN, BRS
ABZ: LGW, LTN,
IOM: LGW, LTN, BRS, LPL, BFS
JER: LGW, LTN, SEN, LPL, NCL, EDI, GLA, BFS
As you can see, apart from the airports in England (BHX, BOH & SOU) which have destinations to the continent (GVA & GNB), the other 4 airports only have destinations within the rest of the UK.
This would suggest that the next EZY-related news to be announced at SOU (if there is going to be any) would be:
- GVA to go year-round,
- a new route to GNB announced,
- or EZY going up against BE/T3 on routes to one of its UK bases.
Anything outside of the above list would mean bucking the usually easy to follow EZY-trend (unless they are to open a base, which is even less likely).