TSN's Bob McKenzie, among others, is reporting that an Ehrhoff-for-Scuderi trade between the Kings and Blackhawks is imminent.
It's unknown exactly what the terms of the trade will be. Scuderi's contract runs through 2016-17 at a $2.25 million cap hit, which would be very problematic for the Kings to take on. Perhaps the Blackhawks will eat a chunk of that (the Penguins already are), or perhaps there is a Vinny Lecavalier-esque agreement that Scuderi will retire. (Jon Rosen implies it will be the former.)
In any case, while Ehrhoff is not much of a loss at this point (he hadn't been anything special this year, and LA was clearly done with him), Scuderi doesn't have much to offer to the Kings.