Man, I remember patrician III, I played it for weeks :) The only thing it lacked was some military action, it was too economic for my taste, and after some time even the economic side of the game became predictable. I wish that they improved this, because the graphics look very nice! I'd love to try this one!

I think this is just a rehash. Not much has changed from versions 1 through to 3 and I can see 4 is just the same with the usual graphical upgrade/changes but the same engine underneath.
Having paid for and played all the previous versions, I'll probably stay away from this unless it has new and innovative game play that's not revealed in the screenies. Wait and see, I believe it's due out Q3 2010.

I don't know, the graphic details look nice, but the gameplay is what matters. We will see in the q3 2010 :)