The PS3 has been very successful this generation at introducing new IP's to compliment there already bulging roster of returning franchises
So far this generation we have seen a number of brilliant new and exclusive IP's brought to the PS3. Those such as:

• Resistance
• Uncharted
• Heavenly Sword
• LittleBIGPlanet
• White Knight Chronicles (whilst no yet released here, the sequel has been mentioned)
• InFamous
• Motorstorm
• the upcoming Heavy Rain, which looks brilliant
• and of course many more

All of these and more compliment the very successful established franchises such as God Of War, Metal Gear Solid and Gran Turismo.

What I am asking is, what's next? Sure we have a little look into the future with Heavy Rain, MAG and The Last Guardian, but whats after that? Do we want more of the same? Or is there a concept we have not yet seen, that you would like to see?
Present some ideas here, let your creative sides run riot.

Resistance 3 (with a lot of marketing and advertising)

The Agent....DUH!!!

im not neccessarily looking for a title thats been announced or is unconfirmed. Perhaps a concept of your own

That secret game that this guy seen and says it's the most amazing thing he's ever seen and it will completely blow everything out of the gaming world....

What the hell ever happened to that game!

http://www.computerandvideogames.com/article.php?id=183209

@Gilgamesh

That was The Last Guardian

last guardian = SEXY.

I'd like another horror franchise , or another dino crisis

Hmm, it depends on your perspective really.

1. It could actually be a little thing, you know the slim model.

2. Maybe a brilliant 'new ip' which sells over 5M copies, you know so brilliant that the market is stunned and cannot get enough of it.

I prefer #1 personally, as its a very easy to define thing and it looks like its coming out soooon. I hate waiting.

A 3D LittleBigPlanet.

How awesome would that be?