Do you keep statistics on how many users use each league? I can't imagine many use Wales or South Africa for example.
Part of the fun in the main game was to take a club from a smaller league and try and bring through a generation of talent into the national side. It would be nicer to have more of those smaller European nations to play with and a more balanced and deeper youth recruitment across the game. There's only really Denmark that fits the build out of the current leagues and then you're left with all the random good youngsters, no matter their nationality, ending up at random Dutch or Ukrainian clubs.