San Andreas! Easily tell this from the countryside, inner city and Vinewood scenes. Lots of mentions of Los Santos (Beach Gym sign, van doors)

0:08 - Couple with a dog. Animals are in. What else? Countryside so horse etc? Maybe.

0:09 - Man wearing what looks like a Startbucks T-shirt. New food/drink store possibly.

0:09 - Sign for 'Pleasure Pier' I think it says. Will we be able to ride these this time around?

0:13 - Chopper can be seen flying about in the distance. Can we fly them in 5 like we couldn't in 4?

0:17 - Golf making another appearance. Probably be able to play some way or another again.

0:17 - Also, a little golf cart to the left, dying to be stolen and drove. Didn't get this in GTA IV untill TBOGT I believe.

0:18 - Blimp top right. Can we fly this thing? That would be awesome.

0:19 - Jet Ski's. Thats enough said there.

0:20 - Beautiful mountain. Looks amazing, and I do believe this is the Mt. Chilead from SA.

0:24 - Convertible roof opening. Lovely touch, maybe a hint of car modding making a return?

0:25 - Sign for 'Piercing'. Maybe hinting at the customizable options growing.

0:31 - Apartment looking place. Maybe part of the 'big house' mentioned at this point. Is it ours from the get go?

0:32 - Road signs. Los Puerta and Little Seoul.

0:33 - Beach Gym. Remember this from SA.

0:39 - Mile High Club poster. Looks like it's for the building in progress. Could the buildings and work being done actually progress the further you get this time?

0:40 - 40-50 year old man. Main character? Friend? Enemy?

0:43 - Workers in field with plane flying by. Countryside is definitely in. And ability to fly planes again by the look of it.

0:48 - Looks like the start of a bank robbery. 3 guys and a 'BUGSTARS Pest Control, Los Santos' van.

0:49 - Pizza place in background. And a sexy car.

0:50 - 'Up-n-Atom Burger' van. The new Burger Shot most likely.

0:52 - Tramps and house selling suggest the story could be about the recession. Enforcing the money looking V.

0:56 - Hookers and beer. Great combination.

0:58 - Man begging for money, and people look like they are living under the freeway. Again, money issues.

1:01 - Plane again!

1:02 - Man thrown out of club. Clubbing makes another appearance, and a yellow bike, what could that mean?

1:04 - Another beautiful car in a police chase. Man inside looks tanned and bald. Main character? Friend? Enemy?

1:06 - Black man running from police. Very unlikely, but CJ maybe?

1:09 - Thats the best looking fire I've seen in GTA.

1:10 - Vinewood. YEAH bitch.

1:11 - Jet, again most likely flyable.

The commentator, and almost certain main playable character is talking about how he is a family man. Almost certain to play a role, kidnapped etc. Bought a big house, so lotta money, but as we see the homeless a lot, maybe he's getting desperate, hence entering/re-entering a life of crime.

It's all very vague, but god damn it looks so good.