Yeah it would definitely be awesome. Thanks for your feedback. I would love to see an official patch-in of that feature eventually if not at launch. They could definitely implement it in if they want too. They already have a spell that lets you "Hover" and another one that let's you "Fly". So both of those mechanics are possible. The form could allow for hover during it's duration, ability at the cost of Action Points to fly to areas same as the current flight spell. Breath attack (dependent on the element you choose), Claw attack (basic Attack) , tail attack (could be like a knockdown). Physical Armor Boost during the duration of the form. Just some examples.
Well it's likely not that simple, which is why I say it would likely be a mod if anything, as much as I'd like it to be official.
Just for example, the -size- may not work ina lot of areas (Such as when indoors / in a cave) and in theory allowing it as a skill tree would make things real weird - would ONE skill give you the claw and the tail and the flight and the breath weapon?
Also, do you mean 'hover' as in the skill where surfaces just up and don't affect you, or 'hover' as in when you are just MOVING you ignore surfaces?