Granted, Poles do not yet fly as much as Western Europeans, but for the right price they will switch from the inconvenient (and slow) local rail network.
Of course they will! The question is whether airlines can pre-empt this demand, or whether we wait for (costa) Lot to evolve slowly. Sorry, that was one of MOL's puns, but it has a lot of truth to it.
Ryanair aren't that big on domestics, I presume because they don't see so much opportunity for ancilliaries, especially at the destination end?
Lublin comes on stream later this year too, tucked away in the far south east corner, so there have to be some good opportunities. However, would the domestic routes be best served from Modlin, or from Chopin, where proximity to city centre is more of an issue? SZZ for one is miles from town too!