I think in 2004 Japan held a seperate qualifier event either the day before or two days before Worlds. Maybe they could do something like that again?
Although I remember Yamato saying on Facebook that they were going to have to grind, so if they are planning something, nothing has been announced.
And Pop, I don't think Japan get ranking points the way the rest of the World does. The only points I know they get are from the Daisuki club where they save up points to earn rare cards. But those points are earned at leagues rather than tournaments.