There is also a third series in the works that will start getting worked on after the SG-1 movies are done.
What I would like to see is the project go public and the ships of the Star Force become the center of the new series. If I had my way the gates around the galaxy would have the DHDs destroyed by a virus causing them to overload and destroy themselves (all but the SGC homebuild DHD of course) then the ships would be absolutely needed and SGC would be shut down.
Now who could launch such an attack and who has the motive? Add that it should be an enemy that could be a challenge but not be overwhelming like Anubis or the Ori and I would use the Aschen. Rather annoyed at losing their home planet to a black hole but they have finally cracked the gate system and seek to cripple everyone else by destroying all but their home build gates.
When the SGC used the Earth gate to advise Daniel when a ship would be by to pick him up have the Goa'uld attack him. They video seen by Earth would show Daniel with his eyes glowing using a Goa'uld hand device fighting off an attack. Later he would try to tell him he was not "exactly" a Goa'uld and could help them design, build and ship out new DHDs immune to the virus attack. Naturally they would seek to capture him and things could get complex. Daniel fighting to survive Goa'uld and SGC attacks while the Achen are causing trouble.
Of course this is just what
I would do not anything official.