From patch 1.2, any orange (custom) appearance in the game will be viable for endgame purposes.
I just shed a single tear of joy.
i would love to see more varied set bonus gear, as well as unique non-modded gear, as well as larger stat bonus's on any new gear that may come out via operations.
I'm opposed to high-stat grind-only gear, since that will counter the stated plans to make PvP more skill-based instead of grind-based. If endgame PvP is supposed to remain open to the majority of players including newcomers, there must necessarily be a plateau at some point.
Grind-gear could still give a very (very, very) slight edge, but that'd have to be almost insignificant and hard to balance. More likely, it'd just lead to "omgnoes dat stuff be imba!" whinefests. Maybe consumable items, timed mods, etc.