I would like to see most of what was listed above and also maybe some STATS for dragon form.
Also - the ability to level up dragon skills and stats somehow (I really don't know how - maybe "places of power" or special quests or some such), not just Dragon Skill Book - which is a OK idea but could be more creative.

And now I repeat myself and some other users:

Ability to attack land creatures,
Ability to go melee as a dragon (you could add a special button for it, so by presiing it near the enemy, or when enemy is selected - you would engage in a melee with him in air or on the ground)
Ability to land as a dragon (and move on the ground)

And again - give our dragon 4 limbs and 2 wings - so he could use them for something (like going melee, walking on the ground etc) otherwise it is just a scalie bird or a wyvern. Maybe when our protagonist becomes more powerful this advanced "true" dragon form will become available for transforming into (something like that - like taping more into the draconic origins - and becoming more powerful Dragon Knight).

On the side note.

Larian guys - you are awesome! XD
There is just too little games like yours. Fix bugs, spend a bit more time on polishing the game and you are cooked!
And for future possible sequel let it still be a dragon protagonist (at least for one more game in the series) - I love draconic RPGs - and there is simply no game like this one - where being a dragon is really a huge part of gameplay (well maybe save for the I of the Dragon game - but it was flawed).

So keep up the good work and hope to see some nice changes in the upcoming add-on and future possible sequels.

Thanks guys!