I believe I've mentioned this already in an other post, but it will be hard to get used to a WGP without Cuba and Italy.
The teams which will take part of this tournament will be: Brazil, Dominican Republic, Puerto Rico and USA (representing the American continent), Poland, Russia, the Netherlands and Germany (representing the European continent) and Japan, China, Korea and Thailand (representing the Asian continent).
I believe the teams which will fight for the title will be Brazil, the Netherlands and China. I also believe Russia will be the 4th strongest team of this tournament. Anyway, this is a long and tiring tournament, and anything can happen. But if I were to name the strongest candidates for the title in this tournament, I would say these four teams are the favourites.