Whoa! Big shock on Eureka . Remember how Syfy ordered six episodes for a potential final season last week? Well, tonight the network decided that not only is the series firmly going to end, but those final six episodes are not going to happen after all. The 13-episode fifth season that was ordered last year, which includes a holiday special, is going to be the final season of Eureka Here’s a statement from Syfy:“After painstaking consideration, we have had to make the difficult business decision to not order a season six of Eureka . But Eureka is not over yet.