So up to this point its obvious through various blue posts legendary items will not be available for Xmugging upon the patches release (At least as it currently stands).
This brings be to my two part question.
1. Will legendary items become Xmuggable in future patches, perhaps when a more in depth item customization feature is released?
If not then,
2. Will you ever consider doing something else to legendary items? For example, instead of Transmogrifying the item. One could scale it up by doing a quest every new tier.
"The quest could have you gather 10 new reagents and kill the end boss of that tier."
Example, ten chaos orbs and a Neff Cho'gal and Alakir kill would scale a legendary to item level 359.
Thoughts? http://us.battle.net/wow/en/forum/topic/3229035503#1 <- official forum link.
---------- Post added 2011-09-24 at 01:22 AM ----------
Note, that it was written as a question on the official forums, general ideas easy to get though.