I am guessing that all the Viroconium continent is included in the Luna province so here are some build options. Again we have several large cities that could build several different things. I am also taking into account that we are still building Freight to rush build the spaceship parts
Lutetia
Current: Aqueduct
Next: Bank/Engineer/Library
Brundisium
Current: Engineer/
Next: Aqueduct/Engineer
Dukeshire
Current: Freight
Next: Freight/Bank
Renmark
Current: Sewer System
Next: Bank/freight/Engineer
Dexterport
Current: Temple
Next: Market Place
Khorasan
Current: Engineer
Next: Sewer system/Bank
Viroconium
Current: Sewer system
Next: Bank/Freight/Factory
Spice Haven
Current: Factory
Next: Bank/Supermarket/Engineer/Freight
Dellville
Current: Factory
Next: Freight/Possibly another Battleship/Possible a port if it does not have one already (I forgot to check this).
Olympia
Current: Airport
Next: Possibly Freight although a Manufacturing plant could be built or Superhighways.
Hippoville
Current: Super Highways
Next: Supermarket/Freight/Engineer
Dreadtown
Current: Stock exchange
Next: Mass Transit/Freight/Offshore platform
Cornmaster
Current: Stock Exchange
Next: Mass transit/Freight
Some Harbours could also be built in several of the cities as well.
Lutetia
Current: Aqueduct
Next: Bank/Engineer/Library
Brundisium
Current: Engineer/
Next: Aqueduct/Engineer
Dukeshire
Current: Freight
Next: Freight/Bank
Renmark
Current: Sewer System
Next: Bank/freight/Engineer
Dexterport
Current: Temple
Next: Market Place
Khorasan
Current: Engineer
Next: Sewer system/Bank
Viroconium
Current: Sewer system
Next: Bank/Freight/Factory
Spice Haven
Current: Factory
Next: Bank/Supermarket/Engineer/Freight
Dellville
Current: Factory
Next: Freight/Possibly another Battleship/Possible a port if it does not have one already (I forgot to check this).
Olympia
Current: Airport
Next: Possibly Freight although a Manufacturing plant could be built or Superhighways.
Hippoville
Current: Super Highways
Next: Supermarket/Freight/Engineer
Dreadtown
Current: Stock exchange
Next: Mass Transit/Freight/Offshore platform
Cornmaster
Current: Stock Exchange
Next: Mass transit/Freight
Some Harbours could also be built in several of the cities as well.