It will certainly be interesting to see how the "new" Cardinals fare against the, as far as I'm concerned, best defense in the NFC. The jury's still out on their pass defense though. They really didn't face many decent passing teams all year. Dallas, when they had their heads on relatively straight, put up 300+ and 41 points and the Cardinals were incredibly predictable and unbalanced.
Other than those two games, I don't see any team on the Eagles schedule that was really a passing team, much less a good passing team. I think it's going to be a dominating win for whichever team that turns out to be at an advantage.
I don't even count the regular season game between the Eagles and the Cardinals. The Eagles jumped out to a big lead early, and then were in a position defensively to cheat against the pass. The Cardinals were held to 25 yards rushing. Boldin had one of his worst games, and Fitzgerald dropped a sure TD pass. If Cardinals receivers don't drop so many passes, maybe that game turns out very differently.
As McNabb said yesterday, that game feels like it happened a year ago. Both teams are different now.