Do not tempt the graphics
Actually, this would be pretty sweet. There are few things in art that will suck your eyeballs out of your head like a Tex Avery wolf more effectively than great lighting, and computer games can do it dynamically.
I think personally I'd like to hear first that simulations confirm LT should run well in a huge universe with interesting AI.
But after that, if Content Josh wants a break, I'm all for unleashing Graphics Josh on some fancy new dynamic lighting (and shadowing) effects. Adding that to the beautiful nebulae he's already figured out how to generate... wow.