A brand new gameplay video revealing Grand Theft Auto 5's Online mode will debut on Thursday, August 15, Rockstar Games has announced, according to VideoGamer.

The gameplay video will be accompanied by the first press previews, VideoGamer also reports.

While Grand Theft Auto 5 is expected to launch September 17 for the Playstation 3 and the Xbox 360, a release date for the game's online version has not been announced but might be revealed after its gameplay is shown.

But the game's online gameplay isn't the only thing Rockstar Games fans are buzzing about.

Michael and Trevor, characters features in the upcoming "Grand Theft Auto 5" video game, might be the same person, InEntertainment reports, leaving gamers wondering if the gameplay move is based on the popular Hollywood film "Fight Club."

"Although some of the theories may not be true they are still worth considering, and first up is the notion that Michael and Trevor could actually be brothers who are possibly in a witness protection scheme. While they discuss previous theories and the possibility this could be apparent, we are unsure whether they are delving too deep in order to get obtain a bigger storyline," InEntertainment writes.

"Other speculation suggests that both Michael and Trevor could actually be the same character in a similar style to that in the movie Fight Club, and this seems to be a fun idea, but even more far-fetched than we anticipated."