davidjohnson6
I think you are making a rather sweeping assumption saying that the easyJet base at SEN was one at which they "struggled". Did they also "struggle" at STN and therefore had to close the base for that reason? I've seen no evidence of that being true at either and they steadily expanded their SEN base up until this year.
I doubt that Wizz would operate a W pattern through SEN from an Eastern European base if they planned to serve Mediterranean destinations. Far better to open a base, maybe seasonal, with one or two aircraft as they do not seem averse to the former elsewhere, e.g. CWL. I wouldn't though take an anna.aero editorial piece as reliable evidence that it will happen and in all honesty I think it unlikely.