Did youo receive your phone as a replacement from Verizon? If it's brand new and it runs on 5.7.906, I surmise that the next official OTA would certainly be 5.7.906. This will absolutely make some folks relaxed since they're worrying that 5.7.906 might not be the right update path. In this case, if anything goes wrong, just head over the thread about OTA Leak and flash it onto your device.
About ROM, unless the developer specifies in their thread, your phone should be ok with any.