I do think the Germans will attempt to shut down Messi, but I don't think they won't be attacking. At least, that is what I hope, as it would be much more exciting. =) I think the Germans want to avoid taking it into penalty kicks. They might play a lot more defensively if they go up early, but if they don't, I expect to see a lot of attacking and counter attacking.
I am predicting a 4-3 Germany win. It will be a high scoring game.
Agreed that going to penalties would be considered a poor outcome for the Germans. I think they'll come out strong in the beginning to see if they can get an early goal. If they're successful in doing that, then I think they've won.
If that doesn't happen, I see them toning down quite a bit and become more cautious as time goes on, which tends to happen with any final because the last thing you want is to concede a goal in the 2nd half, especially late.
I would be extremely surprised to see a high scoring but even game like a 4-3. Would love to be proven wrong on that one though!!