I think the title is still in development, especially since SE released the Noctis perfume. But under a different name now. FF XV possibly. 

From a business/sales standpoint, I think GT6 as a Launch title would be the best thing for Sony. 

I think I have to go with infamous 3 

New IP from Santa Monica... though I can't wait to see all of them!

Agent!

never say never.  Sly just got revived and it never sold as much as J&D.  Just give it to a good developer like Sanzaru (not them specifically just drawing parallels) and have ND look over it.  Sly 4 is my favorite of the series in fact so far so it can be done right, although if they were to revive Jak I would want one more in the vein of the first game (collecting and platforming in the spotlight) rather than the second and third's gunfighting focus.  Although all 3 have their own charm we need more 3d platformers nowadays and those 2 kinda got away from that (though they both still had segments).  I would be happy with Jak 4 taking either direction though as long as it's not like "The Lost Fronteir"

Clips from:

The last guardian and sequel to Heavenly Sword, all others listed are kinda boring. Not sure what "new IP" could be.

*.....as for Killzone? I wouldn't be surprised it gets discontinued soon enough.

Why? It sells well and Guerilla have 2 teams now, meaning they can do new things without ditching KZ. Sony seem to like investing in the series as well, it's been on every PS since PS2.

I dont know man 2.88 and then 2.46 in sales for Killzone (unless is wrong in vgchartz).....gets eclipsed by COD and then Destiny (the next big thing TBD i guess 2014).

YOU ************ NO UNCHARTED 4 WHAT THE FUCK

Oh just read your post, okay.

This is very hard since you dont know what the new IPs are. But I am going to take a safe bet and choose a game I actually know (somewhat) how itll play.

It's between Killzone 4 and Gran Turismo 6. See, I love Killzone and I think it'd be best to build it up with a console launch. So yeah my vote goes to Killzone 4.

With that said: I think Sony might benefit the most from launching Gran Turismo 6.

So in short: Both.

Sure, but most games are eclipsed by COD and Destiny. And it's a lot better than some other PS franchises, it's definitely profitable...   Just because it's not as successful as something else doesn't mean it's not successful. Far Cry gets eclipsed by COD, does that mean ubisoft should stop publishing it?

Looking at Chartz numbers, KZ is more popular than most shooters on PS3. http://www.vgchartz.com/gamedb/?name=&publisher=&platform=PS3&genre=Shooter&minSales=0&results=200

Both PS3 titles are above Crysis, Lost planet, Borderlands, Far cry, Medal of Honor, Dead Space...  Now it is an exclusive so it's sales aren't divided like these games, but even then it still performs very well.

If Guerilla came up with a concept for a game that Sony saw a lot of potential in, even BF/COD-like potential then I could they them considering discontinuation, but until then it'd be stupid to ditch it imo.