In all the Concordia versions, Tribune is limited to placing new Colonists in specified cities: - Imperium: Roma - Italia: Roma - Britannia: Londinium (land), Portus Itius (sea) - Germania: Basilia or Colonia Aggripina - Byzantium: Byzantium - Hispania: Saguntum - Corsica: Aleria - Gallia: Lutetia
In most of the game, Colonist allows one to place a new Colonist either in one of those cities (with no land/sea limitation in Britannia) or in any city in which one has a house: - Imperium/Italia: 'inside “Roma” or inside any other city where the player owns a house.' - Britannia: besides the start cities, 'you may also place new colonists inside any city where you own a house.' - Germania: 'New Colonists may be placed in your own cities, BASILIA or COLONIA AGRIPPINA.' - Byzantium, Hispania: the new start cities 'replace “Roma“ in the text of ... Colonist.'
(The last one leverages the original text from Imperium/Italia.)
But the rules for Corsica and Gallia make no mention of cities in which you own a house, mentioning only Aleria and Lutetia, respectively.
In these versions, can one use Colonist to build outside either of the start cities?
Admittedly, the rules text in these cases is combined for Colonist and Tribune (the latter always limited to the start cities), so maybe the Colonist case was an inadvertent omission.
Also, the rules use the word "may" (e.g., "New Colonists may be placed in ALERIA"), suggesting that this might be in addition to your own cities.
But the write-up does seem different from the other rules.