To celebrate Gran Turismo’s 15th anniversary, Sony has announced that they and Polyphony will hold a Gran Turismo event on May 15th that will unveil the future of the franchise while looking back at its history.

Rumors have swirled that Sony is planning to release Gran Turismo 6 on PS3 before the end of the year. Some would say that it should be released on the PS4, but they already have Drive Club coming for the next-gen system and GT6 would be a great way to keep interest in the PS3 high during the fall of a new console launch.

I will venture a guess that a Gran Turismo anniversary edition of some sort will be announced too.