Some of them are labeled N94, suggesting an evolution from the original iPhone 4 (N90) and Verizon's iPhone 4 (N92). Would this be the fabled cheap iPhone 4 that would complement an all-new, all-amazing, all-magical iPhone 5 with built-in lasers, teleporting unit and burger synthesizer? Perhaps. Would Apple release an iPhone 4s and get done with it? Maybe.
What you can be sure of is that these parts, from the batteries to the backs to the new antennas, are real.