Its probably planned down the road but it would be awesome to implement higher levels of armor all the way to lvl 100. For example
L90 armor - once you reach level 90, a higher tier (higher base values) items will start dropping for you.
L100 armor - Even higher base values than L90 and guarenteed at least same base value as maximum L90 armor.
Would be a big motivator is trying to get to lvl 100 which takes hours more than just get to lvl 70 and already wearing the best armor you can have just rerolling and crafting to try and get afew % better.