I like cases to be subtle (noise and looks) - so the bright colors are a turn-off. I use a p193 and I had a p180 before that.
I'd like a refresh of the p193 with a black interior, better cable management options, no 5" drive bays, SSD mounting on the floor or behind the motherboard, designed for having a dual all-in-one cpu cooler in the roof. Something like the Corsair Carbide 540 - but designed around being quiet.