I doubt sins will ever look as good as homeworld2... its a different scale. Homeworld is about one battle in one area. Sins is about entire systems. Thats why homeworld ships have more working parts and more detail.
True that, but at the same time, Homeworld 2 is 2002 game, while Sins is from 2008, soon to be refreshed, therefore 10 years difference. It would be kinda lame, if the 10 years older game looked better, regardless of the scope of the gameplay. Not talking specifically about moving turrets, i know theyre not going happen, as the engine stays the same - no multithreading - but there is lot more to be improved aside of this, more GPU than CPU related - better lightning, shadow casting, better materials - shaders, better textures, better effects, more detailed unit models....