According to The Guardian:
The company said there were significant gains to be made in Germany, Scandinavia and central Europe in particular, where Air Berlin, SAS and LOT continue to restructure
Germany? Probably true. The country is coping with the economical downturn relatively well while some areas are still under-served there.
Central Europe? Yeah, but will FR be able to substitute the likes of LOT having practically no business-oriented offer?
Scandinavia? It's not a very vast market and partially saturated (in the LCC area by Norwegian and themselves), they possibly could grow mainly in Denmark and Finland, I guess.