When will GTA VI get an online mode?
Rockstar has not announced an official date for a GTA VI online mode.
Take-Two has given a date for the single-player release. That date does not apply to any future multiplayer mode.

Rockstar has not announced an official date for a GTA VI online mode.
Take-Two has given a date for the single-player release. That date does not apply to any future multiplayer mode.