Why mess with a good thing? The Samsung Omnia 7 is a pretty popular phone, only rivaled by Sammy's other offering, the Focus. So it makes sense that Samsung would give a modest update to the design by adding a front-facing camera to the device and we're gonna bet some new silicon on the inside e.g. Adreno 205 GPU, maybe a faster CPU.
Other than that not much else can be gleaned from the filing. Since it is the FCC, we have to leave the door open that perhaps some US carrier will actually pick up this bad bad--Sprint maybe?