Eventually, you'll come up with something. Case in point: VGN365 has happened upon the profile of ex-PlayStation Home developer Martijn van der Meulen. According to Meulen's LinkedIn profile, he is currently working at Sony Studio London on an "unannounced PS3 title".
We know London are currently working on a new EyePet game for PS3, but that's already been announced. There's every possibility this unannounced title could be related to a somewhat unexciting SingStar spin-off, but seeing as the music genre is pretty much dead now, there's room to cross your fingers for The Getaway 3. (We couldn't care less about Eight Days, sorry.)