Hmm
Some interesting suggestions......
In general do you think France is somewhat underserved?
Until the recent Marseille announcement that for me was a gaping hole.
Nice is an interesting one as its well served by Jet2 in peak summer, but frequencies are weak either side and no link in winter. I know Easyjet fly daily+ year round from Liverpool but even so it seems a little weak from MAN.
More from Lyon and Bordeaux seem good calls.
Has anyone ever tried a Paris Orly service?
What about Strasbourg on the border?
As for a 'mid German' route - what about Stuttgart?
With regards Bratislava - as rightly pointed out, its only about 70km from Vienna with reasonable transport links. Maybe you lot are right, it needs Austrian to kick LS off the Vienna route which might then allow Ryanair onto Bratislava.
With regards Katowice. On the numerous times i flew it with Ryanair, it was always 90% plus full. What was noticable however was the, ahem low rent passengers. I was often the only paid taker for overwing extra legroom seats and they usually had to move people to the other 3 rows to cover them. Maybe rather low yield?.....