GTA 5 Online added a lot in the last year:
- a sort of PUBG x Twisted Metal clone Battle Royale mode
- new smuggling business (and hangars)
- new gunrunning business (and bunkers)
- new CEO import/export business (and warehouses)
- biker businesses (and biker gangs, biker club houses, and illegal business properties)
Pretty regular vehicle updates, especially stuff based on new IRL cars (e.g. the new Bugatti Chiron and the Jaguar CX75 concept car). And, if you're stretch the 'last year' to include last summer, various updates to stunt modes/maps and also small updates to heist/felony content.
Surely everyone in North America owns GTA V at this point?
How can there still be people that don't own the game?!
A wise gaffer recently said: "Nothing to be [surprised] by. There are new 18 year olds every day."
Every month there's a new teenager being allowed by his parents to play M rated games for the first time lol.