I am not trying to be critical here, but actually I wonder if this type of universe might not turn out to be very popular:
The Miner's Dream
Flight speed - 0.5x normal
Production/Research etc - 10x normal
Duration - 2 months
Objective - 20% spice value transfer to Retro or Nexus accounts
Let's be honest, some fairly passive miner accounts have grown huge in Retro and Nexus. I think it might be important for the team to recognize that there is a large group of players who really don't mind just building mines and never using ships to attack. Would it be a bad thing to have a universe where this is the main focus? At 1/2 speed, attacks would be very time consuming, so fleeters would either avoid this universe, or would just play it casually to get a spice boost for the main accounts.