One of the nice things about Wrath is the consolidation of bag space. With mounts and pets becoming skills instead of items, it'll free up a lot of bag space for us pack rats. Unfortunately, for now, we still need that bag space, and to get enough of it, some of us have been forced to delete pets, tabards, and keys that we've otherwise outgrown.
But if you're lamenting the loss of your Miniwing, or if you're having second thoughts about deleting that Battle Tabard of the Defilers, take heart. Tigole's announced that Wrath of the Lich King will include a way to recover deleted unique tabards, keys, and vanity pets. For keys, you'll talk to a locksmith, for pets, a stable master, and for tabards, a tabard vendor (likely the ones in the capital town halls).
This only works on unique, one-per-character items, of course, so if you deleted a rare drop, you'll still have to go farm it again. It also doesn't appear to be currently implemented on Beta, but hopefully it is soon so we can test it and make sure all the right unique stuff can be recovered again -- I'm hoping they include non-key keys like the Scepter of Celebras.
In the meantime, it's nice to see that Blizzard's continuing to allow us just a little bit more leeway in character customization and giving us pack rats more options to keep the stuff we love. Next stop: Player housing with item display cases! Hey, I can dream.