The new expansion to GTA 5 is being called "Further Adventures in Finance and Felony" and it continues the storyline of a player becoming the ultimate criminal overlord of Los Santos. It's GTA Online's biggest update so far.
A player can buy high-rise office space, special warehouse properties, and his criminal enterprise can flourish through contraband trade throughout the city. All while fighting the LSPD of course. It will reportedly provide the rarest and items in GTA Online that a player can find.
A new trailer will be coming next week according to Rockstar. The game is set to be released on June 7th.