I don't know if this is the right section for starting this thread, but what about the idea of producing Stargate mini-series for Sci-Fi as another way of continueing the SG-1 story? They could be like 5 or 6 episodes long and based upon a single story line. Some possible ideas for stories would be perhaps, Loki having survived the Asgard suicide, the Tokra story, Tealc and the new Jaffa nation, Jack going back in time to save his son, or really anything at all from the past or future of the SG-1 universe.
I give up any claim to any of those ideas if the are ever actually used. (I think everyone should add a disclaimer like that when posting suggestions that they would like TPTB to really do.)