I think Saudi Arabia will qualify for World Cup using any possible way.
They spent a lot of money to buy Ronaldo and other European players, they also become the sponsor for Club World Cup, after everything they done for football, would they accept if they're not qualified for World Cup.
Lolz..will Ronaldo go and play as for them in order for them to qualify to the world cup. Ronaldo was signed to make the league popular and for people to recognize Saudi Arabia as a football loving country. Suadi have to play in order for them to qualify and if they can't, let them stay at home and watch of countries playing in the world cup so that, they can learn from their mistakes. No country will sell their qualification tocket to Saudi Arabia.
He might mean Saudi Arabia bringing in world class players to local league, the local players got more experience and exposure playing with each other and other top teams around the world. A good local league is precursor for the overall strength of the team.
This has greatly been seen on the performance by Saudi team, it qualified for 3rd round qualifier with equal points that of Jordan. Jordan entered the world cup while Saudi being in a difficult group fell behind Japan and Australia, Now they are in a group with Iraq and Indonesia, Iraq would be their fiercest competitor, The group leader would qualify for worldcup while if they be able to stick to the 2nd position, they'll still get a chance for qualifier.