Originally Posted by

**mistuhbull**
522-547: 25 ilevel jump, ~5% increase (rounded up)

76-83: 7 ilevel jump, ~9% increase. (rounded down)

128-138: 10 ilevel jump, ~8% increase (rounded up)

226-239: 13 ilevel jump, ~6% increase (rounded up)

378-397: 19 ilevel jump, ~5% increase (rounded down)

The ilevel jumps seem to be increasing, but the relative amount they are actually changing within a tier has actually been slowing down. In classic you were having 9% jumps in the second tier, and now the second tier has less than a 5% increase in ilevels.

As to whole expansion? including levelling gear

BC: 81-164, increase of 83 ilevels, or 102.5% increase

Wrath: 138-284: 146 ilevel increase, 105.8% increase

Cata: 272-416: 144 ilevel increase, 52% increase

Mists (projected): 372-599: 227 ilevel increase: 61% increase

It's a greater increase than Cata, but still markedly less than BC or Wrath. And that's including all the loot from the first quest you get loot from to the highest version of the last boss's loot table