I've been away the last week, but I noticed that Exotic Armor now has a re-forge option called "Twist Fate" which allows you to "change the stats and upgrades" on the piece of armor. It requires a consumable called "Glass Needles".
I'm assuming this came with 2.0.1 but has anything been revealed about it yet?
-
You buy them from Xur they come in a pack of 3.