We already had that and it was so glorious, any future Mini Death Star would just be a pale rehash.
To be fair the first Death Star at this point is a mini Death Star.
JEDIT: I’m dumb.
WRONG MINI DEATH STAR!!!
http://originaltrilogy.com/topic/NEW-NEW-REPUBLIC-RP-PROBOARD/id/11507
Most embarrassing moment 2016.