The first #GTAOnline update is coming "Summer 2020", which lasts until the 22nd of September.
The second update, the Heists, are likely to come near Christmas 2020.

The "new location" is not a map expansion by the way, but likely a new building/interiour. pic.twitter.com/LtpN9Nmy2M

— Classique (@ClassiqueGTA) July 26, 2020