With just the powers revealed, the Cosmic sorcerer seems to do respectable damage while inflicting decent control - kind of like a warlock. Just look at Sun and Stars: 2d6+Cha+Str+3d6+Cha+Str. Add on your enhancement bonus and other static damage increases for both attack rolls and you've got a decent attack IMO. The lvl 13 encounter powers aren't too shabby either. The lvl 1 powers have low damage, but two of them target Will so I won't complain!
That halo thing that the dragonborn is wearing is sweet, too. Probably won't be a new implement, but it's cool!