I could easily see that. I wouldn't call the new Scooby "dark" exactly, but there are elements similar to those of some other modern cartoons. A little more 'real' personality wise. I could see them fitting into an episode without being silly or too campy.
According to tv.com or imdb maybe, the person who wrote "Revenge Of The Man-Crab"...Adam Beechen...has also apparently written some episodes of "Batman: The Bold and the Beautiful." Errrr, "Brave and the Bold." Sorry, but that's what I always think of when I see that title.
Anyway, maybe Adam will be involved in this crossover episode? I like what he did last week.