I'm looking forward to it. I was going to create a Mars base via Galacticraft based on the Doom board game, which was inspired by Doom 3. It would be weird to have UAC facilities but no modern weapons. And typical weapon mods don't include e.g. plasma guns.
I would have liked a D3 mod but a D4 mod will be just as good. So long as various modules can be turned off, I'm all on board.