The Hawks will be prepared. I assure you that there will be things that we haven't seen all season. I believe that the winner of this game wins the Super Bowl. Things will open up and the defense will have something extra for their brothers down South. They don't have to save anything for the Super Bowl, they need to bring everything they have Sunday and they will.
When it comes to the Niners, the Hawks bring it. There is going to be a ton of talk about how great the Niners and Kaeperstank are. How even though the Niners crap the bed here under Kaeperstank, that this time is different, just like last time was different before putting up 3 points. The only time the Niners even threatened to score in the last game, was a short drive that followed a special teams screw up that should have been a false start.
Other than that the Niners can't run their offense here. Sure, in the warmth of their own place they can win a close game, but here they have systemic problems that would require them to make changes that take them out of their MO that is so effective everywhere else. They have genuine problems here and it puts them at a serious disadvantage. That is the reason that Kaeperstank refuses to acknowledge the crowd noise. If he did, it would force them to admit that there is a problem and Harbafreak is just too stubborn to do it.