Just remember that alot of the Japanese got their places early in the Metagame, and will have continued to keep track of changes.
To everyone going to worlds: You've got eighteen or so days to prepare

Give the Japs hell! Oh, and expect a lot of anti-metagame teams at Worlds. So yeah... try to look for solid but innovative team ideas

Well there's the problem...Japan used a lot of different ideas, while over here the trending team is Ogre/Top/Aboma/whatever. So if you think in that regard, it's easier for them to come up with an anti-metagame team opposing us, rather than the other way around. Not to mention they've had what, half a year to prepare for worlds while we just had our Nats right?
Do not fret, guys. MSankey's got it covered.