Im making a druid for the expressed purpose of tree form. Its unfortunate that forms can't have armor showing, a nice compromise would be that all the necklaces and rings that don't show on your regular toons would be the only things you could see on a shapeshifted druid. At least you can tell them apart from all the different kinds of bling they got on. Of course i doubt the model makers would relish having to go back and add models for all the old equip that they never had to before.
Personally id like to see a change where as you start out as a full verdant tree and as you run out of mana, the leaves start to turn brown and fall off.