The posting on their website is lacking a little on the information side, with just the GTA logo and the nimber five in roman numerals. The V is also green too, so people can feel free to speculate on that, maybe there are trees in this one!
As Giant Bomb reports, Rockstar have said that there won't be a huge wait for info on the game. The trailer will be put up on the 2nd of November. So mark that date in your calendar, for what is sure to be the most mindnumbingly awesome trailer to hit your face since the dawn of time, or you could pick up some game about Francis Drake or something, your choice.