Just Flight has briefly previewed again their upcoming Boeing 747 Classic by releasing on Facebook a few pictures of their aircraft surrounded by its ground environment. The developer further adds that their Boeing 747 will come with an integrated ground service equipment such as airstairs, baggage loaders, GPU etc. that will be managed through a dedicated 2D panel.
The Just Flight 747 Classic was announced in June 2018 and will recreate in P3D the Boeing 747-100 and -200 along with their freighter variants. A 747-300 and a 747SP as well as military variants such as the VC-25A and the E-4B are scheduled further at a yet unknown timeframe.
You can read the FSElite interview of the development team here.