Beware the Ides of March

It makes me think of HBO's Rome. War, conquest, gratuitous violence, egomaniacal dictators, and every obscene sex act imaginable - that show had it all! I can't beleive that they're not following up with another season already. What happened? The next two eras were perfectly set up to continue the story with the reigns of both Marc Antony and then the Augustus to be.