Given that the map Destiny went out, here is the piece of news map always in development, usg_universe_air.
In this map you can fight on Icarus and on Destiny, the Icarus part is soon ended but there is always the destiny part to be redone in very big part.
The stargate will be activated by departure in the map to go from icarus to Destiny, however there will be a means to return on Icarus;)