it is going to take YEARS for people to consume the content
0.18% of the population cleared naxx before BC.
in classic bosses drop 3-5 pieces of Loot for 40 people,
each person has 16 equippable slots.
Thats roughly 640 items required.
add to that the fact that duplicates drop.
thats not including not required duplicates.
Classic is a time waster.
BC refined and removed some of the time wasting.
Leave Classic alone to those that are in it for the long haul, i expect to be playng classic for the next 2-3 years minimum
and you could say the same about retail:
lvl up
gear
consume content
get bis
what next....