"Not much of a gain for STN"...
Well at present planning WOW actually return to STN & almost certainly with the downsizing both London airports were not.
The STN ops will now be year round instead of seasonal.
The STN ops will be retimed giving better connections to US/Canada.
STN ops now commence 31st March 2019 as opposed to 25th April this year.
So a little kudos for STN certainly.