Who really cares how many tracks there are? I'd take 8 or 9 if they are all great songs. The key to any good album is to keep out all the fillers and leave the gold.
Case in point, Springsteen's Born to Run. Considered one of the greatest rock albums of all time. How many tracks? Eight! But you get Jungleland, 10th Ave. Freezeout, Born to Run, Thunder Road, etc. all on the same album.
Of course, if they could maintain the quality, 11 or 12 seems to be their favorite #'s...