i don't think this is the same planet, as there is clearly no effort to make it look similar to the original gas giants surface, maybe I'm wrong though. this planet was definitely visible in an earlier trailer but not like it is in this one. in the other trailer the ringed planet looked like the moon does when you can see the moon in the day time - just white light detail look.
i think its no coincidence that this shot of the planet in the background like that is much more on par with ridleys original vision of the ringed gas giant in the background of the scenery in ALIEN. (based on the original story board for alien)
he may have wanted to get that shot the way he really wanted now that the technology for cgi is around.