Comparing the graphics via screenshots

[Shougun]

I'm a bit busy to dig up the actual source, but I believe there was an article/interview that talked on this that stated the core of the new engine being the Luminous engine. I'm sure someone else can find it, but iirc, that is what has been said.

They are related but not the same system. SE doesnt have time to finish the luminous system for this game, the luminous system will probably be done in a year or so.

So they took a lot of concepts, probably good parts of code and then built another beast. Related but not the same thing.