The external shape is done, but we don't know about the cockpit.
I can't imagine HTC taking the time to finish a 3rd generation P-38 before finishing the updates on the older AH1 stuff first.
They might be sitting on a bunch of new external models and releasing them as the cockpits are done. The 109 on the AH3 splash screen is not the current 3D model either, but I'm not thinking that we'll see an updated 109 until after all the AH1 models are gone.