There is a petition for season 3... sign it people!
http://www.gopetition.com/online/30121.html

Also, here is a message posted on Rome's fan site: "Our wonderful Rome sent this message - 8-7-09: Thank you, thank you, thank you my fans. I am working to get show back myself. Certain things I could do. I am so happy that many people like our show."

Hmmmm... interesting. Maybe there is hope after all?