Well, if there is a PS4 coming, they got no choice. It doesn't look good to release a new PS3 game the week after the PS4 is released. If Sony is making a PS4, surely they want GT6 to be one of the selling points.
The problem is that old hardware is getting exponentially older with time. Sony can't hang on to the PS3 any longer than Microsoft is hanging on to the Xbox 360. Neither of them can't hold on much longer regardless of each other because PC's would be so much ahead of them. No high profile game studio would want to develop games for the PlayStation or the Xbox if they were so far behind PC's. ...
PCs have always been ahead, and by a larger margin previously than now.
IMO the bigger problem for the console makers at this point, is the cost of PC gaming, which is at an all time low.
As I did recently, gamers for a minimal investment can buy a PC that will play practically all of PC games, with your console controller and good graphics.
The game selection is so much more vast and less costly too.
The Steam box is also of note in this category.
Be that as it may, the fact remains, Sony has no choice.
The biggest reason they have no choice is a two letter word called:
MS
If MS releases another Xbox by whatever name it may be called, Sony must release another playstation, and in a much prompter time frame than last time.
PS3 sales after five years of bringing up the rear, just recently matched 360 numbers.
They can't afford to get left in the dust again this time.
Although I'm sure they hate forgoing the potential GT6 sales to those 70 + million PS3 owners.
Until recently, I did not believe that would happen, but MS is forcing their hand.
Ironically, I'm not sure under the current economic circumstances, whether either company can really afford to release a new console with the initial losses usually associated with it, and a likely longer term payback.
Particularly Sony, since it is almost swimming in red ink.
According to the Swedish newspaper Aftonbladet (that's an example of a source) there are rumors (yep still rumors, but it's the source saying that it is, so technically it's still a valid source) that the PS4 will be announced at either Game Developer's Conference this spring, or at E3 this summer.
Another article mentions a rumor about both the next Xbox and the next PlayStation being released in time for Christmas 2013, although they say that this rumor is less reliable.
Now, (and this is only me speculating, don't quote me...) it would make sense to release a console as quickly as possible after it's been announced, scince computers and electronics are aging really fast these days (have been doing so ever scince the 1960's actually, perhaps even longer than that), if they would wait a whole year before releasing, much of the technology would be obsolete before it's out on the market. Announcing new, wild features and then waiting a year before releasing, also gives the competition time to catch up and copy the winning concepts.
Maybe it's not what will actually happen, but at least there is some sense to it.
and this:
http://www.gamingcapacity.com/the-ps...a-aaa-line-up/
I agree, it does make sense.
I see where you're coming from, but if there is a PS4 coming soon, then they have no choice but to make GT6 a PS4 game. Sony is not going to release the next console without any big titles supporting it. Perhaps if GT5 would have been quicker to develop they could have made two PS3 titles within the timeframe, but as things unfolded it doesn't seem very likely.
Assuming of course that there actually is a PS4 coming soon, God Only Knows...
True, God Only Knows.
But again, Sony truly has no choice, so the PS4 has to be coming soon.
And they have got to do everything possible to move them, which is where the big titles come in.
Of note, GT6.
)
It would be soooo awesome if GT6 came out this year. 
