Sure as long as it's done right this time around.
I'd say that's the best way to put it. I like Doom3's darkness, but it got VERY frustrating to see nothing but dark levels. Doom3 NEEDED some daytime lit levels, like from classic Doom. Doom3's darkness, though, was good for creating a demonic atmosphere, so the whole idea is that in Doom4 they'd better understand that in Mars there is also a daytime, not just night, and they should use the daytime to make outside semi-openworld maps, like those in Doom2
