It is good to hear you appreciate my ideas, but these are just tech related stuffs. A new galaxy would need some main conflict, a few dominant races, some connection to the Ancients and to the Earth and not to mention that our heroes must be motivated to risk their life for some local goals.
What would you like to tell about Continuum? The timeline was fixed, so all the AU events have been erased / rewritten. The time machine could be used, but normally all time travelers are lost in the past and they could never return.