I would very much like to see added to the game in a future expansion content update for a ranger/druid class character to be able to have the ability to tame a variety of wild animal pets like a bear, lion, tiger, eagle, wolf, and others and have well balanced mechanics for that.
I think that would fit will in the game and could be avail for purchase in the in game store or have a quest that the character would go on to get that ability and be able to go out and tame them in the wild or buy the beasts from vendors in the game.
Please consider this and would open up a new game play and style that would give the players more to do and add longevity to the game.