not remove the appearance of forms, remove the need of forms as stances. Stealthing as a feral druid would still place you into cat form because the only reasons you can stealth is because you become a cat.

Form will still be present however just not tied to being in a stance. Instead depending on the type of ability will determine how far you transform, simply using shred only the claws of a cat is needed and so the animation would reflect that.

As for receiving different abilities via different stances. Atm you only receive the most basic of skills for each spec. for example, feral druids only receive growl, mangle and frenzied regeneration for it's bear form abilities. Non of these make you any better at tanking nor any more viable, the only thing that does is heart of the wild and I've already covered that.