I just wish we could get a setting like Eberron, one that doesn't revolve around planar hopping or giant space hamsters, but one that takes it a couple of steps further.
Well, you could always visit the campaign ideas thread (in my sig)...ORRRR
Start a worldbuilding thread of your own and invite all the combined creativity of ENWorld to help you with the heavy lifting. I'd pitch in- I dig that stuff.