Syfy has canceled Stargate Universe, according to Deadline Hollywood.  The remaining ten episodes of the show’s second season will be aired in the spring, with no more to follow.  This apparently marks the end of the Stargate franchise, at least as far as series are concerned.  The first series ran ten seasons; Stargate Atlantis was canceled after five seasons.  

A Stargate Atlantis-Stargate Universe crossover movie was greenlit last summer (see “SGA-SGU Crossover”).  At one point a Stargate movie, Stargate:  Extinction was also planned.