I've read about the merger of the Eredivisie and the Pro League, but I don't think they will pull it off.
Historically, Dutch sides have done well on a European level without the need of high earning big name players...However in this day and age, high earning players
sometimes correlate with quality of the player. If you look at the last Dutch squad to win a title (which was Ajax versus Milan in 95, a great Ajax team) you had van der Saar in goals, who stayed a bit longer then eventually went to Juve, Reiziger who left to Milan on a free a year later, Danny Blind who retired soon after, Frank Rijkaard who retired afterwards, Frank and Ron de Boer who left for Barca in 98 for like 20m pounds, Seedorf who went to Sampdoria right afterwards (on a free I believe), Finidi George who went to Betis the next season on a free, Edgar Davids who went to Milan next season on a free, Jari Litmanen (who was legendary there) went to Barca in 99, Marc Overmars to Arsenal for 5.5m pound in 97

, Kanu to Inter in 96 for 4m pound, and Kluivert to Milan the next season on a free.
That's an entire team gone within the space of 4 years, and most of it in the next year...And all because of the Bosman ruling.
I'm not making excuses for the Eredivisie, but this talent was lured away with lucrative deals which Ajax, and other dutch teams also affected, couldn't match...However, everyone knows that the youth academy's there are incredible and it would not be impossible for a dutch side to win a UCL or EL with a young squad...They would just sell that squad in the next couple years and have to start again.