It's OK, put the binoculars down. You can rest now. Rockstar has seemingly revealed its suspicious edits to the GTA 6 PlayStation store page was related to its GTA + membership and not a third GTA 6 trailer, as some fans who haven't slept in two days thought.
Two days ago, these people noticed GTA 6's store page on PlayStation consoles suddenly included information about GTA+, a Rockstar subscription service that grants access to a number of its titles. If you're not really picking up on "new GTA 6 trailer" from this information... yes. It seems like Rockstar has used the PlayStation store to subtly announce its GTA+ membership now gives access to GTA Online – and this could, theoretically, eventually encompass GTA 6 Online.
