Because of course.
So far, Ubisoft has released a pair of CSI games- CSI: Fatal Conspiracy, and CSI: Unsolved. Both games were slammed by critics, but predictably, went on to sell quite a lot. So of course, it’s not surprising that a resurgent Ubisoft has apparently decided to try their hand on a new one. Maybe this time, the game will sell a lot and be worth a damn!
As someone on NeoGAF pointed out, Ubisoft just registered two domains that seem to relate to this over the weekend- http://csihiddencrimesgame.com/ and http://csihiddencrimes.com. None of these currently work, but the domains were just registered on the Saturday that just went by, so that part kind of makes sense.
Also, I’m going to go out on a limb here and declare that my official guess is, the new game, if it exists, will be called CSI: Hidden Crimes. It’s just a hunch I have.