DSA-GVA was always going to be a seasonal ski route.
STN makes all its money in the summer and very little in the winter. EMA makes very little money at all, so further expansion there is unlikely.
MAN is too close to LPL and the landing charges and slot availabilty would make expantion there unlikely.
BHX could be a possibilty. The competition would produce very low seat yields, so again unlikely.
The UK market is very saturated, so I am expecting to see new crew bases in mainland Europe. Could even be outside the EU.