It would be great with some more side quests, a better way to sort item (maybe increase the screen resolution to be able to fit it all in), to arrange the action bar of your companions, a few more companions, a more complex build of characters and in general; simply more :)
Now don't get me wrong this was a great game and the engine (of what I can see from playing) is more then promising if you want to expand the game.
Working on all of this for Ch2!