If you're trying to stimulate business.....Survey Polish community in greater Southampton catchment area......which would be their preferred Polish hub?....LOT might be attracted...especially as they have a varied Embraer 170/175/190 fleet......could be worth a couple of flights a week as a tester.
There is a big Polish population everywhere in the UK. Southamapton's is no bigger than anywhere else which means if Southampton could support a route so could practically ever other minor and major airport in the UK.
Wizz at Luton now has 668 movements a week arriving and departing this summer from Eastern Europe as more and more migrants choose to live in the UK so the demand will continue to increase as the UK growth rate for Wizz is a massive 24%. No doubt many of those migrants and their visiting families will be heading for the south coast so as time goes on the viability of new routes say from Southampton will increase with time.