Yes, I thought of the golf course in the trailer and made this. I wasn't sure if the banner was the entire image or the inner box...
Prolaps was also in GTA IV. So I'm sure we'll see the return of some other SA brands.
I doubt the emergency lights and reflections will be as well done but here's a glimpse of a fantastical new Los Santos for GTA 5 (if that happens). Good stuff is at 0:45 and onward.
http://www.youtube.com/watch?v=MOzyNBb12c8
This one is more realistic of what we can expect:
If only I had a gaming PC and knew how to mod...
gta v 5 grand theft auto 5 v los santos police screenshot leak beach
I think the guy selling his house in the trailer is just an indication that this game will be set in a world undergoing a financial crisis, in fact not dissimilar to our own world. Note that after this clip is when we see hobos and prostitutes. It's setting the scene, not hinting at gameplay elements.
Which isn't to say there won't be property ownership aspects anyway. I think they are a popular enough feature for R* to include them again.