We're looking for a new theme that highlights the season cliffhanger, since it'll be late October before this cliffhanger is resolved. The site is the Grimm Wiki.
The color scheme doesn't need to be changed, just the backdrop.
Here's what I have in mind:
Of course, the resolution in some of these images isn't quite the best, but I think I can scrape some screenshots from the season finale.
The theme here is based on the enemies and belligerents of Nick, since at the moment, they have the unmistakable upper hand. If anything can be done touch-up-wise to emphasize certain moods of characters, Adalind is fairly confidant about the future but isn't sure whether Stefania plans to help her or kill her, Sean is scared for Nick's life and wary of Eric and the Baron, and the other three feel like world domination is finally within reach.
If you need anything to fill in empty space and are feeling a bit creative, Adalind and Stefania are in a dark forest at a Romani gypsy camp in Europe, and the other three are in Portland, getting ready to depart to Vienna by plane. I'm not sure what kind of backgrounds would work with this collage, but that might give you some ideas.