High lvl gear on low lvl with new closet?
I would assume so, its basically the same thing as when you transmute high level skins (lets say T3 armor) to low level armor.
Kind of how i have infinite light on my lvl 23 war atm.
Yes, you can do it even now.
You could already use high level skins on a low level character. Absolutely nothing was stopping you from buying a level 80 piece of gear and transmuting it to a level 20 item. The only thing changing now is that you won’t “lose” your high level weapon or armor in order to put the skin on something low level.
I know i can transmute it already, i do it all the time =) but it’s gonna be so much easier now!