The new previews for GTAV have started to show up. Find the links below, in addition to our summary and the new screenshots and new artwork.
Summary

Features
You can buy property; houses, garages, businesses and marinas can all be purchased for extra revenue sources.
You can pick up hitchikers, do stunt jumps and flying challenges, take part in yoga, golf, tennis, bike races and triathlons.
iFruit, the game's new phone, can be used to snap pictures and upload them to Rockstar's Social Club
The phone also has apps. In addition to the camera there is internet, contacts, social media, a calendar, and a replay missions app. There are three more Rockstar hasn't yet revealed.
A combat roll has been introduced for moving between cover
Liquor store and ATM robberies is possible.
Side missions will be making a return. One would involve Michael in Vinewood Boulevard racing a starlet away from the paparazzi.
Citizens will react to what you do, and if they see you robbing someone they could alert the police, film you, or even try to take you down themselves.
Hunting animals.
Source