PS3 is still a very important format. Sells at up to 2x as much as wii u in Europe currently and that is in a ps3 saturated market. No doubt the PS3 will continue to sell for many years into South America, Africa etc. GT6 is an amazing game and doing good numbers.
Maybe the next version will be specially developed with Morpheus in mind so as more details of Morpheus are revealed we will get more Gran Turismo 7 details.
Gran Turismo is developed with a 'when its ready' approach to its release to ensure a good game with a lot of content. Yes commercially the timing could be better but from a gameplayer's perspective we should respect the fact that the release date is less important than the game itself.








