So, yes, little to no detail -- but at least Rockstar didn't drag fans along for a month with an ARG and still not release anything. What little we do see in the trailer is gorgeous. The poster stated the game would only come out for PS4 and Xbox One, leaving PC fans in the limbo of uncertainty, but it's hard to imagine the newly-announced Nintendo Switch tablet-console hybrid handling this graphical monster.
Update: PlayStation has announced that its partnership with Rockstar will allow PS4 players to get first access to earn select online content. Once again, that's all the details we have for now, leaving mysterious what that means for the game or its online component.