The FCC documents don’t necessarily provide anything new, since the device is 100% official, including specs and carrier availability (sort of). Instead, we get confirmation on things like LTE support on bands 4 and 13, plus roaming on GSM bands 850 and 1900.
Oh, there is also a mention of the FCC’s need to test out a wireless charging cover, since the standard cover more than likely does not allow for wireless charging. Instead, that will need to come from an additional purchase of a QuickCircle case or official wireless charging back plate. The Verge reported earlier in the week on US variants not having wireless charging built-in because carriers have agreements in place that prevent such a thing. In other words, they want you to pay for features like wireless charging.
Still no official launch date, but things like FCC approvals certainly make things a step closer.