World of Warcraft GMs are probably beyond sick and tired of player petitions to undo a character deletion if a recent dev post by Blizzard is any indication. Coming with Warlords of Draenor is a new feature that will allow players to resurrect a deleted character with its gear and enchantments intact. The studio even said that it will even hold onto deleted character names "for a limited time."
There are a few exceptions to the undelete feature. Toons under level 10 won't be recoverable at all, and those between levels 10 and 49 will be lost forever after a set amount of time. Also, players can use this function only once every month, so undelete wisely!